67438125

素因数分解:

$3^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:676

約数の個数: 60

約数和(自身を含む): 128333920

約数和(自身を除く): 60895795

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 171, 225, 285, 375, 475, 625, 631, 855, 1125, 1425, 1875, 1893, 2375, 3155, 4275, 5625, 5679, 7125, 9465, 11875, 11989, 15775, 21375, 28395, 35625, 35967, 47325, 59945, 78875, 106875, 107901, 141975, 179835, 236625, 299725, 394375, 539505, 709875, 899175, 1183125, 1498625, 2697525, 3549375, 4495875, 7493125, 13487625, 22479375, 67438125]

約数ペア:

[(1, 67438125), (3, 22479375), (5, 13487625), (9, 7493125), (15, 4495875), (19, 3549375), (25, 2697525), (45, 1498625), (57, 1183125), (75, 899175), (95, 709875), (125, 539505), (171, 394375), (225, 299725), (285, 236625), (375, 179835), (475, 141975), (625, 107901), (631, 106875), (855, 78875), (1125, 59945), (1425, 47325), (1875, 35967), (1893, 35625), (2375, 28395), (3155, 21375), (4275, 15775), (5625, 11989), (5679, 11875), (7125, 9465)]