20097570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 51601536

約数和(自身を除く): 31503966

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 157, 170, 251, 255, 314, 471, 502, 510, 753, 785, 942, 1255, 1506, 1570, 2355, 2510, 2669, 3765, 4267, 4710, 5338, 7530, 8007, 8534, 12801, 13345, 16014, 21335, 25602, 26690, 39407, 40035, 42670, 64005, 78814, 80070, 118221, 128010, 197035, 236442, 394070, 591105, 669919, 1182210, 1339838, 2009757, 3349595, 4019514, 6699190, 10048785, 20097570]

約数ペア:

[(1, 20097570), (2, 10048785), (3, 6699190), (5, 4019514), (6, 3349595), (10, 2009757), (15, 1339838), (17, 1182210), (30, 669919), (34, 591105), (51, 394070), (85, 236442), (102, 197035), (157, 128010), (170, 118221), (251, 80070), (255, 78814), (314, 64005), (471, 42670), (502, 40035), (510, 39407), (753, 26690), (785, 25602), (942, 21335), (1255, 16014), (1506, 13345), (1570, 12801), (2355, 8534), (2510, 8007), (2669, 7530), (3765, 5338), (4267, 4710)]