138889297100

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{919}}^1\times {\mathrm{16981}}^1$

素因数の和:18003

約数の個数: 72

約数和(自身を含む): 305125783200

約数和(自身を除く): 166236486100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 919, 1780, 1838, 2225, 3676, 4450, 4595, 8900, 9190, 16981, 18380, 22975, 33962, 45950, 67924, 81791, 84905, 91900, 163582, 169810, 327164, 339620, 408955, 424525, 817910, 849050, 1511309, 1635820, 1698100, 2044775, 3022618, 4089550, 6045236, 7556545, 8179100, 15113090, 15605539, 30226180, 31211078, 37782725, 62422156, 75565450, 78027695, 151130900, 156055390, 312110780, 390138475, 780276950, 1388892971, 1560553900, 2777785942, 5555571884, 6944464855, 13888929710, 27777859420, 34722324275, 69444648550, 138889297100]

約数ペア:

[(1, 138889297100), (2, 69444648550), (4, 34722324275), (5, 27777859420), (10, 13888929710), (20, 6944464855), (25, 5555571884), (50, 2777785942), (89, 1560553900), (100, 1388892971), (178, 780276950), (356, 390138475), (445, 312110780), (890, 156055390), (919, 151130900), (1780, 78027695), (1838, 75565450), (2225, 62422156), (3676, 37782725), (4450, 31211078), (4595, 30226180), (8900, 15605539), (9190, 15113090), (16981, 8179100), (18380, 7556545), (22975, 6045236), (33962, 4089550), (45950, 3022618), (67924, 2044775), (81791, 1698100), (84905, 1635820), (91900, 1511309), (163582, 849050), (169810, 817910), (327164, 424525), (339620, 408955)]