72668440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139747}}^1$

素因数の和:139771

約数の個数: 32

約数和(自身を含む): 176082480

約数和(自身を除く): 103414040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139747, 279494, 558988, 698735, 1117976, 1397470, 1816711, 2794940, 3633422, 5589880, 7266844, 9083555, 14533688, 18167110, 36334220, 72668440]

約数ペア:

[(1, 72668440), (2, 36334220), (4, 18167110), (5, 14533688), (8, 9083555), (10, 7266844), (13, 5589880), (20, 3633422), (26, 2794940), (40, 1816711), (52, 1397470), (65, 1117976), (104, 698735), (130, 558988), (260, 279494), (520, 139747)]