261888120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{811}}^1$

素因数の和:867

約数の個数: 256

約数和(自身を含む): 982195200

約数和(自身を除く): 720307080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 23, 24, 26, 27, 30, 36, 39, 40, 45, 46, 52, 54, 60, 65, 69, 72, 78, 90, 92, 104, 108, 115, 117, 120, 130, 135, 138, 156, 180, 184, 195, 207, 216, 230, 234, 260, 270, 276, 299, 312, 345, 351, 360, 390, 414, 460, 468, 520, 540, 552, 585, 598, 621, 690, 702, 780, 811, 828, 897, 920, 936, 1035, 1080, 1170, 1196, 1242, 1380, 1404, 1495, 1560, 1622, 1656, 1755, 1794, 2070, 2340, 2392, 2433, 2484, 2691, 2760, 2808, 2990, 3105, 3244, 3510, 3588, 4055, 4140, 4485, 4680, 4866, 4968, 5382, 5980, 6210, 6488, 7020, 7176, 7299, 8073, 8110, 8280, 8970, 9732, 10543, 10764, 11960, 12165, 12420, 13455, 14040, 14598, 16146, 16220, 17940, 18653, 19464, 21086, 21528, 21897, 24330, 24840, 26910, 29196, 31629, 32292, 32440, 35880, 36495, 37306, 40365, 42172, 43794, 48660, 52715, 53820, 55959, 58392, 63258, 64584, 72990, 74612, 80730, 84344, 87588, 93265, 94887, 97320, 105430, 107640, 109485, 111918, 126516, 145980, 149224, 158145, 161460, 167877, 175176, 186530, 189774, 210860, 218970, 223836, 242489, 253032, 279795, 284661, 291960, 316290, 322920, 335754, 373060, 379548, 421720, 437940, 447672, 474435, 484978, 503631, 559590, 569322, 632580, 671508, 727467, 746120, 759096, 839385, 875880, 948870, 969956, 1007262, 1119180, 1138644, 1212445, 1265160, 1343016, 1423305, 1454934, 1678770, 1897740, 1939912, 2014524, 2182401, 2238360, 2277288, 2424890, 2518155, 2846610, 2909868, 3357540, 3637335, 3795480, 4029048, 4364802, 4849780, 5036310, 5693220, 5819736, 6547203, 6715080, 7274670, 8729604, 9699560, 10072620, 10912005, 11386440, 13094406, 14549340, 17459208, 20145240, 21824010, 26188812, 29098680, 32736015, 43648020, 52377624, 65472030, 87296040, 130944060, 261888120]

約数ペア:

[(1, 261888120), (2, 130944060), (3, 87296040), (4, 65472030), (5, 52377624), (6, 43648020), (8, 32736015), (9, 29098680), (10, 26188812), (12, 21824010), (13, 20145240), (15, 17459208), (18, 14549340), (20, 13094406), (23, 11386440), (24, 10912005), (26, 10072620), (27, 9699560), (30, 8729604), (36, 7274670), (39, 6715080), (40, 6547203), (45, 5819736), (46, 5693220), (52, 5036310), (54, 4849780), (60, 4364802), (65, 4029048), (69, 3795480), (72, 3637335), (78, 3357540), (90, 2909868), (92, 2846610), (104, 2518155), (108, 2424890), (115, 2277288), (117, 2238360), (120, 2182401), (130, 2014524), (135, 1939912), (138, 1897740), (156, 1678770), (180, 1454934), (184, 1423305), (195, 1343016), (207, 1265160), (216, 1212445), (230, 1138644), (234, 1119180), (260, 1007262), (270, 969956), (276, 948870), (299, 875880), (312, 839385), (345, 759096), (351, 746120), (360, 727467), (390, 671508), (414, 632580), (460, 569322), (468, 559590), (520, 503631), (540, 484978), (552, 474435), (585, 447672), (598, 437940), (621, 421720), (690, 379548), (702, 373060), (780, 335754), (811, 322920), (828, 316290), (897, 291960), (920, 284661), (936, 279795), (1035, 253032), (1080, 242489), (1170, 223836), (1196, 218970), (1242, 210860), (1380, 189774), (1404, 186530), (1495, 175176), (1560, 167877), (1622, 161460), (1656, 158145), (1755, 149224), (1794, 145980), (2070, 126516), (2340, 111918), (2392, 109485), (2433, 107640), (2484, 105430), (2691, 97320), (2760, 94887), (2808, 93265), (2990, 87588), (3105, 84344), (3244, 80730), (3510, 74612), (3588, 72990), (4055, 64584), (4140, 63258), (4485, 58392), (4680, 55959), (4866, 53820), (4968, 52715), (5382, 48660), (5980, 43794), (6210, 42172), (6488, 40365), (7020, 37306), (7176, 36495), (7299, 35880), (8073, 32440), (8110, 32292), (8280, 31629), (8970, 29196), (9732, 26910), (10543, 24840), (10764, 24330), (11960, 21897), (12165, 21528), (12420, 21086), (13455, 19464), (14040, 18653), (14598, 17940), (16146, 16220)]