9973340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 22861440

約数和(自身を除く): 12888100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 431, 445, 862, 890, 1157, 1724, 1780, 2155, 2314, 4310, 4628, 5603, 5785, 8620, 11206, 11570, 22412, 23140, 28015, 38359, 56030, 76718, 112060, 153436, 191795, 383590, 498667, 767180, 997334, 1994668, 2493335, 4986670, 9973340]

約数ペア:

[(1, 9973340), (2, 4986670), (4, 2493335), (5, 1994668), (10, 997334), (13, 767180), (20, 498667), (26, 383590), (52, 191795), (65, 153436), (89, 112060), (130, 76718), (178, 56030), (260, 38359), (356, 28015), (431, 23140), (445, 22412), (862, 11570), (890, 11206), (1157, 8620), (1724, 5785), (1780, 5603), (2155, 4628), (2314, 4310)]