28498035

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 23507853

約数列:

[1, 3, 5, 15, 17, 23, 43, 51, 69, 85, 113, 115, 129, 215, 255, 339, 345, 391, 565, 645, 731, 989, 1173, 1695, 1921, 1955, 2193, 2599, 2967, 3655, 4859, 4945, 5763, 5865, 7797, 9605, 10965, 12995, 14577, 14835, 16813, 24295, 28815, 38985, 44183, 50439, 72885, 82603, 84065, 111757, 132549, 220915, 247809, 252195, 335271, 413015, 558785, 662745, 1239045, 1676355, 1899869, 5699607, 9499345, 28498035]

約数ペア:

[(1, 28498035), (3, 9499345), (5, 5699607), (15, 1899869), (17, 1676355), (23, 1239045), (43, 662745), (51, 558785), (69, 413015), (85, 335271), (113, 252195), (115, 247809), (129, 220915), (215, 132549), (255, 111757), (339, 84065), (345, 82603), (391, 72885), (565, 50439), (645, 44183), (731, 38985), (989, 28815), (1173, 24295), (1695, 16813), (1921, 14835), (1955, 14577), (2193, 12995), (2599, 10965), (2967, 9605), (3655, 7797), (4859, 5865), (4945, 5763)]