102639375

素因数分解:

$3^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:354

約数の個数: 60

約数和(自身を含む): 188602128

約数和(自身を除く): 85962753

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 125, 213, 225, 257, 355, 375, 625, 639, 771, 1065, 1125, 1285, 1775, 1875, 2313, 3195, 3855, 5325, 5625, 6425, 8875, 11565, 15975, 18247, 19275, 26625, 32125, 44375, 54741, 57825, 79875, 91235, 96375, 133125, 160625, 164223, 273705, 289125, 399375, 456175, 481875, 821115, 1368525, 1445625, 2280875, 4105575, 6842625, 11404375, 20527875, 34213125, 102639375]

約数ペア:

[(1, 102639375), (3, 34213125), (5, 20527875), (9, 11404375), (15, 6842625), (25, 4105575), (45, 2280875), (71, 1445625), (75, 1368525), (125, 821115), (213, 481875), (225, 456175), (257, 399375), (355, 289125), (375, 273705), (625, 164223), (639, 160625), (771, 133125), (1065, 96375), (1125, 91235), (1285, 79875), (1775, 57825), (1875, 54741), (2313, 44375), (3195, 32125), (3855, 26625), (5325, 19275), (5625, 18247), (6425, 15975), (8875, 11565)]