18925600

素因数分解:

$2^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{577}}^1$

素因数の和:638

約数の個数: 72

約数和(自身を含む): 47411028

約数和(自身を除く): 28485428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 160, 164, 200, 205, 328, 400, 410, 577, 656, 800, 820, 1025, 1154, 1312, 1640, 2050, 2308, 2885, 3280, 4100, 4616, 5770, 6560, 8200, 9232, 11540, 14425, 16400, 18464, 23080, 23657, 28850, 32800, 46160, 47314, 57700, 92320, 94628, 115400, 118285, 189256, 230800, 236570, 378512, 461600, 473140, 591425, 757024, 946280, 1182850, 1892560, 2365700, 3785120, 4731400, 9462800, 18925600]

約数ペア:

[(1, 18925600), (2, 9462800), (4, 4731400), (5, 3785120), (8, 2365700), (10, 1892560), (16, 1182850), (20, 946280), (25, 757024), (32, 591425), (40, 473140), (41, 461600), (50, 378512), (80, 236570), (82, 230800), (100, 189256), (160, 118285), (164, 115400), (200, 94628), (205, 92320), (328, 57700), (400, 47314), (410, 46160), (577, 32800), (656, 28850), (800, 23657), (820, 23080), (1025, 18464), (1154, 16400), (1312, 14425), (1640, 11540), (2050, 9232), (2308, 8200), (2885, 6560), (3280, 5770), (4100, 4616)]