64278620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12409}}^1$

素因数の和:12462

約数の個数: 48

約数和(自身を含む): 158450880

約数和(自身を除く): 94172260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 12409, 24818, 49636, 62045, 86863, 124090, 173726, 248180, 347452, 434315, 459133, 868630, 918266, 1737260, 1836532, 2295665, 3213931, 4591330, 6427862, 9182660, 12855724, 16069655, 32139310, 64278620]

約数ペア:

[(1, 64278620), (2, 32139310), (4, 16069655), (5, 12855724), (7, 9182660), (10, 6427862), (14, 4591330), (20, 3213931), (28, 2295665), (35, 1836532), (37, 1737260), (70, 918266), (74, 868630), (140, 459133), (148, 434315), (185, 347452), (259, 248180), (370, 173726), (518, 124090), (740, 86863), (1036, 62045), (1295, 49636), (2590, 24818), (5180, 12409)]