71228560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68489}}^1$

素因数の和:68515

約数の個数: 40

約数和(自身を含む): 178347960

約数和(自身を除く): 107119400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 68489, 136978, 273956, 342445, 547912, 684890, 890357, 1095824, 1369780, 1780714, 2739560, 3561428, 4451785, 5479120, 7122856, 8903570, 14245712, 17807140, 35614280, 71228560]

約数ペア:

[(1, 71228560), (2, 35614280), (4, 17807140), (5, 14245712), (8, 8903570), (10, 7122856), (13, 5479120), (16, 4451785), (20, 3561428), (26, 2739560), (40, 1780714), (52, 1369780), (65, 1095824), (80, 890357), (104, 684890), (130, 547912), (208, 342445), (260, 273956), (520, 136978), (1040, 68489)]