18437640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 42526200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 53, 60, 65, 78, 104, 106, 120, 130, 156, 159, 195, 212, 223, 260, 265, 312, 318, 390, 424, 446, 520, 530, 636, 669, 689, 780, 795, 892, 1060, 1115, 1272, 1338, 1378, 1560, 1590, 1784, 2067, 2120, 2230, 2676, 2756, 2899, 3180, 3345, 3445, 4134, 4460, 5352, 5512, 5798, 6360, 6690, 6890, 8268, 8697, 8920, 10335, 11596, 11819, 13380, 13780, 14495, 16536, 17394, 20670, 23192, 23638, 26760, 27560, 28990, 34788, 35457, 41340, 43485, 47276, 57980, 59095, 69576, 70914, 82680, 86970, 94552, 115960, 118190, 141828, 153647, 173940, 177285, 236380, 283656, 307294, 347880, 354570, 460941, 472760, 614588, 709140, 768235, 921882, 1229176, 1418280, 1536470, 1843764, 2304705, 3072940, 3687528, 4609410, 6145880, 9218820, 18437640]

約数ペア:

[(1, 18437640), (2, 9218820), (3, 6145880), (4, 4609410), (5, 3687528), (6, 3072940), (8, 2304705), (10, 1843764), (12, 1536470), (13, 1418280), (15, 1229176), (20, 921882), (24, 768235), (26, 709140), (30, 614588), (39, 472760), (40, 460941), (52, 354570), (53, 347880), (60, 307294), (65, 283656), (78, 236380), (104, 177285), (106, 173940), (120, 153647), (130, 141828), (156, 118190), (159, 115960), (195, 94552), (212, 86970), (223, 82680), (260, 70914), (265, 69576), (312, 59095), (318, 57980), (390, 47276), (424, 43485), (446, 41340), (520, 35457), (530, 34788), (636, 28990), (669, 27560), (689, 26760), (780, 23638), (795, 23192), (892, 20670), (1060, 17394), (1115, 16536), (1272, 14495), (1338, 13780), (1378, 13380), (1560, 11819), (1590, 11596), (1784, 10335), (2067, 8920), (2120, 8697), (2230, 8268), (2676, 6890), (2756, 6690), (2899, 6360), (3180, 5798), (3345, 5512), (3445, 5352), (4134, 4460)]