87972195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 156017664

約数和(自身を除く): 68045469

約数列:

[1, 3, 5, 15, 17, 43, 51, 71, 85, 113, 129, 213, 215, 255, 339, 355, 565, 645, 731, 1065, 1207, 1695, 1921, 2193, 3053, 3621, 3655, 4859, 5763, 6035, 8023, 9159, 9605, 10965, 14577, 15265, 18105, 24069, 24295, 28815, 40115, 45795, 51901, 72885, 82603, 120345, 136391, 155703, 247809, 259505, 344989, 409173, 413015, 681955, 778515, 1034967, 1239045, 1724945, 2045865, 5174835, 5864813, 17594439, 29324065, 87972195]

約数ペア:

[(1, 87972195), (3, 29324065), (5, 17594439), (15, 5864813), (17, 5174835), (43, 2045865), (51, 1724945), (71, 1239045), (85, 1034967), (113, 778515), (129, 681955), (213, 413015), (215, 409173), (255, 344989), (339, 259505), (355, 247809), (565, 155703), (645, 136391), (731, 120345), (1065, 82603), (1207, 72885), (1695, 51901), (1921, 45795), (2193, 40115), (3053, 28815), (3621, 24295), (3655, 24069), (4859, 18105), (5763, 15265), (6035, 14577), (8023, 10965), (9159, 9605)]