679968010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 1321920000

約数和(自身を除く): 641951990

約数列:

[1, 2, 5, 10, 19, 38, 79, 89, 95, 158, 178, 190, 395, 445, 509, 790, 890, 1018, 1501, 1691, 2545, 3002, 3382, 5090, 7031, 7505, 8455, 9671, 14062, 15010, 16910, 19342, 35155, 40211, 45301, 48355, 70310, 80422, 90602, 96710, 133589, 201055, 226505, 267178, 402110, 453010, 667945, 764009, 860719, 1335890, 1528018, 1721438, 3578779, 3820045, 4303595, 7157558, 7640090, 8607190, 17893895, 35787790, 67996801, 135993602, 339984005, 679968010]

約数ペア:

[(1, 679968010), (2, 339984005), (5, 135993602), (10, 67996801), (19, 35787790), (38, 17893895), (79, 8607190), (89, 7640090), (95, 7157558), (158, 4303595), (178, 3820045), (190, 3578779), (395, 1721438), (445, 1528018), (509, 1335890), (790, 860719), (890, 764009), (1018, 667945), (1501, 453010), (1691, 402110), (2545, 267178), (3002, 226505), (3382, 201055), (5090, 133589), (7031, 96710), (7505, 90602), (8455, 80422), (9671, 70310), (14062, 48355), (15010, 45301), (16910, 40211), (19342, 35155)]