64347790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21521}}^1$

素因数の和:21564

約数の個数: 32

約数和(自身を含む): 130165056

約数和(自身を除く): 65817266

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 21521, 43042, 107605, 215210, 279773, 494983, 559546, 989966, 1398865, 2474915, 2797730, 4949830, 6434779, 12869558, 32173895, 64347790]

約数ペア:

[(1, 64347790), (2, 32173895), (5, 12869558), (10, 6434779), (13, 4949830), (23, 2797730), (26, 2474915), (46, 1398865), (65, 989966), (115, 559546), (130, 494983), (230, 279773), (299, 215210), (598, 107605), (1495, 43042), (2990, 21521)]