64989020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2833}}^1$

素因数の和:2910

約数の個数: 48

約数和(自身を含む): 144738048

約数和(自身を除く): 79749028

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1147, 2294, 2833, 4588, 5666, 5735, 11332, 11470, 14165, 22940, 28330, 56660, 87823, 104821, 175646, 209642, 351292, 419284, 439115, 524105, 878230, 1048210, 1756460, 2096420, 3249451, 6498902, 12997804, 16247255, 32494510, 64989020]

約数ペア:

[(1, 64989020), (2, 32494510), (4, 16247255), (5, 12997804), (10, 6498902), (20, 3249451), (31, 2096420), (37, 1756460), (62, 1048210), (74, 878230), (124, 524105), (148, 439115), (155, 419284), (185, 351292), (310, 209642), (370, 175646), (620, 104821), (740, 87823), (1147, 56660), (2294, 28330), (2833, 22940), (4588, 14165), (5666, 11470), (5735, 11332)]