72580820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{16421}}^1$

素因数の和:16460

約数の個数: 48

約数和(自身を含む): 173810448

約数和(自身を除く): 101229628

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 16421, 32842, 65684, 82105, 164210, 213473, 279157, 328420, 426946, 558314, 853892, 1067365, 1116628, 1395785, 2134730, 2791570, 3629041, 4269460, 5583140, 7258082, 14516164, 18145205, 36290410, 72580820]

約数ペア:

[(1, 72580820), (2, 36290410), (4, 18145205), (5, 14516164), (10, 7258082), (13, 5583140), (17, 4269460), (20, 3629041), (26, 2791570), (34, 2134730), (52, 1395785), (65, 1116628), (68, 1067365), (85, 853892), (130, 558314), (170, 426946), (221, 328420), (260, 279157), (340, 213473), (442, 164210), (884, 82105), (1105, 65684), (2210, 32842), (4420, 16421)]