180440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 438480

約数和(自身を除く): 258040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 347, 520, 694, 1388, 1735, 2776, 3470, 4511, 6940, 9022, 13880, 18044, 22555, 36088, 45110, 90220, 180440]

約数ペア:

[(1, 180440), (2, 90220), (4, 45110), (5, 36088), (8, 22555), (10, 18044), (13, 13880), (20, 9022), (26, 6940), (40, 4511), (52, 3470), (65, 2776), (104, 1735), (130, 1388), (260, 694), (347, 520)]