1406389660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{31267}}^1$

素因数の和:31462

約数の個数: 48

約数和(自身を含む): 3199091616

約数和(自身を除く): 1792701956

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 346, 692, 865, 1730, 2249, 3460, 4498, 8996, 11245, 22490, 31267, 44980, 62534, 125068, 156335, 312670, 406471, 625340, 812942, 1625884, 2032355, 4064710, 5409191, 8129420, 10818382, 21636764, 27045955, 54091910, 70319483, 108183820, 140638966, 281277932, 351597415, 703194830, 1406389660]

約数ペア:

[(1, 1406389660), (2, 703194830), (4, 351597415), (5, 281277932), (10, 140638966), (13, 108183820), (20, 70319483), (26, 54091910), (52, 27045955), (65, 21636764), (130, 10818382), (173, 8129420), (260, 5409191), (346, 4064710), (692, 2032355), (865, 1625884), (1730, 812942), (2249, 625340), (3460, 406471), (4498, 312670), (8996, 156335), (11245, 125068), (22490, 62534), (31267, 44980)]