129203750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{7951}}^1$

素因数の和:7986

約数の個数: 40

約数和(自身を含む): 260841504

約数和(自身を除く): 131637754

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3250, 7951, 8125, 15902, 16250, 39755, 79510, 103363, 198775, 206726, 397550, 516815, 993875, 1033630, 1987750, 2584075, 4969375, 5168150, 9938750, 12920375, 25840750, 64601875, 129203750]

約数ペア:

[(1, 129203750), (2, 64601875), (5, 25840750), (10, 12920375), (13, 9938750), (25, 5168150), (26, 4969375), (50, 2584075), (65, 1987750), (125, 1033630), (130, 993875), (250, 516815), (325, 397550), (625, 206726), (650, 198775), (1250, 103363), (1625, 79510), (3250, 39755), (7951, 16250), (8125, 15902)]