77938125

素因数分解:

$3^1\times 5^4\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:431

約数の個数: 40

約数和(自身を含む): 131133024

約数和(自身を除く): 53194899

約数列:

[1, 3, 5, 15, 25, 75, 125, 197, 211, 375, 591, 625, 633, 985, 1055, 1875, 2955, 3165, 4925, 5275, 14775, 15825, 24625, 26375, 41567, 73875, 79125, 123125, 124701, 131875, 207835, 369375, 395625, 623505, 1039175, 3117525, 5195875, 15587625, 25979375, 77938125]

約数ペア:

[(1, 77938125), (3, 25979375), (5, 15587625), (15, 5195875), (25, 3117525), (75, 1039175), (125, 623505), (197, 395625), (211, 369375), (375, 207835), (591, 131875), (625, 124701), (633, 123125), (985, 79125), (1055, 73875), (1875, 41567), (2955, 26375), (3165, 24625), (4925, 15825), (5275, 14775)]