65291980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13217}}^1$

素因数の和:13258

約数の個数: 48

約数和(自身を含む): 155443680

約数和(自身を除く): 90151700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 13217, 26434, 52868, 66085, 132170, 171821, 251123, 264340, 343642, 502246, 687284, 859105, 1004492, 1255615, 1718210, 2511230, 3264599, 3436420, 5022460, 6529198, 13058396, 16322995, 32645990, 65291980]

約数ペア:

[(1, 65291980), (2, 32645990), (4, 16322995), (5, 13058396), (10, 6529198), (13, 5022460), (19, 3436420), (20, 3264599), (26, 2511230), (38, 1718210), (52, 1255615), (65, 1004492), (76, 859105), (95, 687284), (130, 502246), (190, 343642), (247, 264340), (260, 251123), (380, 171821), (494, 132170), (988, 66085), (1235, 52868), (2470, 26434), (4940, 13217)]