64578540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82793}}^1$

素因数の和:82818

約数の個数: 48

約数和(自身を含む): 194731488

約数和(自身を除く): 130152948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 82793, 165586, 248379, 331172, 413965, 496758, 827930, 993516, 1076309, 1241895, 1655860, 2152618, 2483790, 3228927, 4305236, 4967580, 5381545, 6457854, 10763090, 12915708, 16144635, 21526180, 32289270, 64578540]

約数ペア:

[(1, 64578540), (2, 32289270), (3, 21526180), (4, 16144635), (5, 12915708), (6, 10763090), (10, 6457854), (12, 5381545), (13, 4967580), (15, 4305236), (20, 3228927), (26, 2483790), (30, 2152618), (39, 1655860), (52, 1241895), (60, 1076309), (65, 993516), (78, 827930), (130, 496758), (156, 413965), (195, 331172), (260, 248379), (390, 165586), (780, 82793)]