643189170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{2549}}^1$

素因数の和:3219

約数の個数: 64

約数和(自身を含む): 1665619200

約数和(自身を除く): 1022430030

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 647, 1294, 1941, 2549, 3235, 3882, 5098, 6470, 7647, 8411, 9705, 12745, 15294, 16822, 19410, 25233, 25490, 33137, 38235, 42055, 50466, 66274, 76470, 84110, 99411, 126165, 165685, 198822, 252330, 331370, 497055, 994110, 1649203, 3298406, 4947609, 8246015, 9895218, 16492030, 21439639, 24738045, 42879278, 49476090, 64318917, 107198195, 128637834, 214396390, 321594585, 643189170]

約数ペア:

[(1, 643189170), (2, 321594585), (3, 214396390), (5, 128637834), (6, 107198195), (10, 64318917), (13, 49476090), (15, 42879278), (26, 24738045), (30, 21439639), (39, 16492030), (65, 9895218), (78, 8246015), (130, 4947609), (195, 3298406), (390, 1649203), (647, 994110), (1294, 497055), (1941, 331370), (2549, 252330), (3235, 198822), (3882, 165685), (5098, 126165), (6470, 99411), (7647, 84110), (8411, 76470), (9705, 66274), (12745, 50466), (15294, 42055), (16822, 38235), (19410, 33137), (25233, 25490)]