1520003875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{607}}^1$

素因数の和:725

約数の個数: 64

約数和(自身を含む): 2167087104

約数和(自身を除く): 647083229

約数列:

[1, 5, 13, 23, 25, 65, 67, 115, 125, 299, 325, 335, 575, 607, 871, 1495, 1541, 1625, 1675, 2875, 3035, 4355, 7475, 7705, 7891, 8375, 13961, 15175, 20033, 21775, 37375, 38525, 39455, 40669, 69805, 75875, 100165, 108875, 181493, 192625, 197275, 203345, 349025, 500825, 528697, 907465, 935387, 986375, 1016725, 1745125, 2504125, 2643485, 4537325, 4676935, 5083625, 12160031, 13217425, 22686625, 23384675, 60800155, 66087125, 116923375, 304000775, 1520003875]

約数ペア:

[(1, 1520003875), (5, 304000775), (13, 116923375), (23, 66087125), (25, 60800155), (65, 23384675), (67, 22686625), (115, 13217425), (125, 12160031), (299, 5083625), (325, 4676935), (335, 4537325), (575, 2643485), (607, 2504125), (871, 1745125), (1495, 1016725), (1541, 986375), (1625, 935387), (1675, 907465), (2875, 528697), (3035, 500825), (4355, 349025), (7475, 203345), (7705, 197275), (7891, 192625), (8375, 181493), (13961, 108875), (15175, 100165), (20033, 75875), (21775, 69805), (37375, 40669), (38525, 39455)]