31203640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2609}}^1$

素因数の和:2656

約数の個数: 64

約数和(自身を含む): 78926400

約数和(自身を除く): 47722760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2609, 2990, 5218, 5980, 10436, 11960, 13045, 20872, 26090, 33917, 52180, 60007, 67834, 104360, 120014, 135668, 169585, 240028, 271336, 300035, 339170, 480056, 600070, 678340, 780091, 1200140, 1356680, 1560182, 2400280, 3120364, 3900455, 6240728, 7800910, 15601820, 31203640]

約数ペア:

[(1, 31203640), (2, 15601820), (4, 7800910), (5, 6240728), (8, 3900455), (10, 3120364), (13, 2400280), (20, 1560182), (23, 1356680), (26, 1200140), (40, 780091), (46, 678340), (52, 600070), (65, 480056), (92, 339170), (104, 300035), (115, 271336), (130, 240028), (184, 169585), (230, 135668), (260, 120014), (299, 104360), (460, 67834), (520, 60007), (598, 52180), (920, 33917), (1196, 26090), (1495, 20872), (2392, 13045), (2609, 11960), (2990, 10436), (5218, 5980)]