1640964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 4211648

約数和(自身を除く): 2570684

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 157, 201, 268, 314, 402, 471, 628, 804, 871, 942, 1742, 1884, 2041, 2613, 3484, 4082, 5226, 6123, 8164, 10452, 10519, 12246, 21038, 24492, 31557, 42076, 63114, 126228, 136747, 273494, 410241, 546988, 820482, 1640964]

約数ペア:

[(1, 1640964), (2, 820482), (3, 546988), (4, 410241), (6, 273494), (12, 136747), (13, 126228), (26, 63114), (39, 42076), (52, 31557), (67, 24492), (78, 21038), (134, 12246), (156, 10519), (157, 10452), (201, 8164), (268, 6123), (314, 5226), (402, 4082), (471, 3484), (628, 2613), (804, 2041), (871, 1884), (942, 1742)]