18785520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 200

約数和(自身を含む): 70578816

約数和(自身を除く): 51793296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 223, 234, 240, 260, 270, 312, 324, 351, 360, 390, 405, 432, 446, 468, 520, 540, 585, 624, 648, 669, 702, 720, 780, 810, 892, 936, 1040, 1053, 1080, 1115, 1170, 1296, 1338, 1404, 1560, 1620, 1755, 1784, 1872, 2007, 2106, 2160, 2230, 2340, 2676, 2808, 2899, 3120, 3240, 3345, 3510, 3568, 4014, 4212, 4460, 4680, 5265, 5352, 5616, 5798, 6021, 6480, 6690, 7020, 8028, 8424, 8697, 8920, 9360, 10035, 10530, 10704, 11596, 12042, 13380, 14040, 14495, 16056, 16848, 17394, 17840, 18063, 20070, 21060, 23192, 24084, 26091, 26760, 28080, 28990, 30105, 32112, 34788, 36126, 40140, 42120, 43485, 46384, 48168, 52182, 53520, 57980, 60210, 69576, 72252, 78273, 80280, 84240, 86970, 90315, 96336, 104364, 115960, 120420, 130455, 139152, 144504, 156546, 160560, 173940, 180630, 208728, 231920, 234819, 240840, 260910, 289008, 313092, 347880, 361260, 391365, 417456, 469638, 481680, 521820, 626184, 695760, 722520, 782730, 939276, 1043640, 1174095, 1252368, 1445040, 1565460, 1878552, 2087280, 2348190, 3130920, 3757104, 4696380, 6261840, 9392760, 18785520]

約数ペア:

[(1, 18785520), (2, 9392760), (3, 6261840), (4, 4696380), (5, 3757104), (6, 3130920), (8, 2348190), (9, 2087280), (10, 1878552), (12, 1565460), (13, 1445040), (15, 1252368), (16, 1174095), (18, 1043640), (20, 939276), (24, 782730), (26, 722520), (27, 695760), (30, 626184), (36, 521820), (39, 481680), (40, 469638), (45, 417456), (48, 391365), (52, 361260), (54, 347880), (60, 313092), (65, 289008), (72, 260910), (78, 240840), (80, 234819), (81, 231920), (90, 208728), (104, 180630), (108, 173940), (117, 160560), (120, 156546), (130, 144504), (135, 139152), (144, 130455), (156, 120420), (162, 115960), (180, 104364), (195, 96336), (208, 90315), (216, 86970), (223, 84240), (234, 80280), (240, 78273), (260, 72252), (270, 69576), (312, 60210), (324, 57980), (351, 53520), (360, 52182), (390, 48168), (405, 46384), (432, 43485), (446, 42120), (468, 40140), (520, 36126), (540, 34788), (585, 32112), (624, 30105), (648, 28990), (669, 28080), (702, 26760), (720, 26091), (780, 24084), (810, 23192), (892, 21060), (936, 20070), (1040, 18063), (1053, 17840), (1080, 17394), (1115, 16848), (1170, 16056), (1296, 14495), (1338, 14040), (1404, 13380), (1560, 12042), (1620, 11596), (1755, 10704), (1784, 10530), (1872, 10035), (2007, 9360), (2106, 8920), (2160, 8697), (2230, 8424), (2340, 8028), (2676, 7020), (2808, 6690), (2899, 6480), (3120, 6021), (3240, 5798), (3345, 5616), (3510, 5352), (3568, 5265), (4014, 4680), (4212, 4460)]