65218420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2843}}^1$

素因数の和:2920

約数の個数: 48

約数和(自身を含む): 145248768

約数和(自身を除く): 80030348

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1147, 2294, 2843, 4588, 5686, 5735, 11372, 11470, 14215, 22940, 28430, 56860, 88133, 105191, 176266, 210382, 352532, 420764, 440665, 525955, 881330, 1051910, 1762660, 2103820, 3260921, 6521842, 13043684, 16304605, 32609210, 65218420]

約数ペア:

[(1, 65218420), (2, 32609210), (4, 16304605), (5, 13043684), (10, 6521842), (20, 3260921), (31, 2103820), (37, 1762660), (62, 1051910), (74, 881330), (124, 525955), (148, 440665), (155, 420764), (185, 352532), (310, 210382), (370, 176266), (620, 105191), (740, 88133), (1147, 56860), (2294, 28430), (2843, 22940), (4588, 14215), (5686, 11470), (5735, 11372)]