1905112820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{431021}}^1$

素因数の和:431060

約数の個数: 48

約数和(自身を含む): 4561936848

約数和(自身を除く): 2656824028

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, 431021, 862042, 1724084, 2155105, 4310210, 5603273, 7327357, 8620420, 11206546, 14654714, 22413092, 28016365, 29309428, 36636785, 56032730, 73273570, 95255641, 112065460, 146547140, 190511282, 381022564, 476278205, 952556410, 1905112820]

約数ペア:

[(1, 1905112820), (2, 952556410), (4, 476278205), (5, 381022564), (10, 190511282), (13, 146547140), (17, 112065460), (20, 95255641), (26, 73273570), (34, 56032730), (52, 36636785), (65, 29309428), (68, 28016365), (85, 22413092), (130, 14654714), (170, 11206546), (221, 8620420), (260, 7327357), (340, 5603273), (442, 4310210), (884, 2155105), (1105, 1724084), (2210, 862042), (4420, 431021)]