887013975

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 1557955840

約数和(自身を除く): 670941865

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 79, 115, 237, 283, 345, 395, 529, 575, 849, 1185, 1415, 1587, 1725, 1817, 1975, 2645, 4245, 5451, 5925, 6509, 7075, 7935, 9085, 13225, 19527, 21225, 22357, 27255, 32545, 39675, 41791, 45425, 67071, 97635, 111785, 125373, 136275, 149707, 162725, 208955, 335355, 449121, 488175, 514211, 558925, 626865, 748535, 1044775, 1542633, 1676775, 2245605, 2571055, 3134325, 3742675, 7713165, 11228025, 11826853, 12855275, 35480559, 38565825, 59134265, 177402795, 295671325, 887013975]

約数ペア:

[(1, 887013975), (3, 295671325), (5, 177402795), (15, 59134265), (23, 38565825), (25, 35480559), (69, 12855275), (75, 11826853), (79, 11228025), (115, 7713165), (237, 3742675), (283, 3134325), (345, 2571055), (395, 2245605), (529, 1676775), (575, 1542633), (849, 1044775), (1185, 748535), (1415, 626865), (1587, 558925), (1725, 514211), (1817, 488175), (1975, 449121), (2645, 335355), (4245, 208955), (5451, 162725), (5925, 149707), (6509, 136275), (7075, 125373), (7935, 111785), (9085, 97635), (13225, 67071), (19527, 45425), (21225, 41791), (22357, 39675), (27255, 32545)]