216781760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:143

約数の個数: 168

約数和(自身を含む): 588190848

約数和(自身を除く): 371409088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 41, 52, 62, 64, 65, 80, 82, 104, 124, 130, 155, 160, 164, 205, 208, 248, 260, 310, 320, 328, 403, 410, 416, 496, 520, 533, 620, 656, 806, 820, 832, 992, 1040, 1066, 1240, 1271, 1312, 1612, 1640, 1681, 1984, 2015, 2080, 2132, 2480, 2542, 2624, 2665, 3224, 3280, 3362, 4030, 4160, 4264, 4960, 5084, 5330, 6355, 6448, 6560, 6724, 8060, 8405, 8528, 9920, 10168, 10660, 12710, 12896, 13120, 13448, 16120, 16523, 16810, 17056, 20336, 21320, 21853, 25420, 25792, 26896, 32240, 33046, 33620, 34112, 40672, 42640, 43706, 50840, 52111, 53792, 64480, 66092, 67240, 81344, 82615, 85280, 87412, 101680, 104222, 107584, 109265, 128960, 132184, 134480, 165230, 170560, 174824, 203360, 208444, 218530, 260555, 264368, 268960, 330460, 349648, 406720, 416888, 437060, 521110, 528736, 537920, 660920, 677443, 699296, 833776, 874120, 1042220, 1057472, 1321840, 1354886, 1398592, 1667552, 1748240, 2084440, 2643680, 2709772, 3335104, 3387215, 3496480, 4168880, 5287360, 5419544, 6774430, 6992960, 8337760, 10839088, 13548860, 16675520, 21678176, 27097720, 43356352, 54195440, 108390880, 216781760]

約数ペア:

[(1, 216781760), (2, 108390880), (4, 54195440), (5, 43356352), (8, 27097720), (10, 21678176), (13, 16675520), (16, 13548860), (20, 10839088), (26, 8337760), (31, 6992960), (32, 6774430), (40, 5419544), (41, 5287360), (52, 4168880), (62, 3496480), (64, 3387215), (65, 3335104), (80, 2709772), (82, 2643680), (104, 2084440), (124, 1748240), (130, 1667552), (155, 1398592), (160, 1354886), (164, 1321840), (205, 1057472), (208, 1042220), (248, 874120), (260, 833776), (310, 699296), (320, 677443), (328, 660920), (403, 537920), (410, 528736), (416, 521110), (496, 437060), (520, 416888), (533, 406720), (620, 349648), (656, 330460), (806, 268960), (820, 264368), (832, 260555), (992, 218530), (1040, 208444), (1066, 203360), (1240, 174824), (1271, 170560), (1312, 165230), (1612, 134480), (1640, 132184), (1681, 128960), (1984, 109265), (2015, 107584), (2080, 104222), (2132, 101680), (2480, 87412), (2542, 85280), (2624, 82615), (2665, 81344), (3224, 67240), (3280, 66092), (3362, 64480), (4030, 53792), (4160, 52111), (4264, 50840), (4960, 43706), (5084, 42640), (5330, 40672), (6355, 34112), (6448, 33620), (6560, 33046), (6724, 32240), (8060, 26896), (8405, 25792), (8528, 25420), (9920, 21853), (10168, 21320), (10660, 20336), (12710, 17056), (12896, 16810), (13120, 16523), (13448, 16120)]