80717500

素因数分解:

$2^2\times 5^4\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:496

約数の個数: 60

約数和(自身を含む): 179098920

約数和(自身を除く): 98381420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 125, 166, 250, 332, 389, 415, 500, 625, 778, 830, 1250, 1556, 1660, 1945, 2075, 2500, 3890, 4150, 7780, 8300, 9725, 10375, 19450, 20750, 32287, 38900, 41500, 48625, 51875, 64574, 97250, 103750, 129148, 161435, 194500, 207500, 243125, 322870, 486250, 645740, 807175, 972500, 1614350, 3228700, 4035875, 8071750, 16143500, 20179375, 40358750, 80717500]

約数ペア:

[(1, 80717500), (2, 40358750), (4, 20179375), (5, 16143500), (10, 8071750), (20, 4035875), (25, 3228700), (50, 1614350), (83, 972500), (100, 807175), (125, 645740), (166, 486250), (250, 322870), (332, 243125), (389, 207500), (415, 194500), (500, 161435), (625, 129148), (778, 103750), (830, 97250), (1250, 64574), (1556, 51875), (1660, 48625), (1945, 41500), (2075, 38900), (2500, 32287), (3890, 20750), (4150, 19450), (7780, 10375), (8300, 9725)]