30918940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1091}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 70630560

約数和(自身を除く): 39711620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1091, 1417, 2180, 2182, 2834, 4364, 5455, 5668, 7085, 10910, 14170, 14183, 21820, 28340, 28366, 56732, 70915, 118919, 141830, 237838, 283660, 475676, 594595, 1189190, 1545947, 2378380, 3091894, 6183788, 7729735, 15459470, 30918940]

約数ペア:

[(1, 30918940), (2, 15459470), (4, 7729735), (5, 6183788), (10, 3091894), (13, 2378380), (20, 1545947), (26, 1189190), (52, 594595), (65, 475676), (109, 283660), (130, 237838), (218, 141830), (260, 118919), (436, 70915), (545, 56732), (1090, 28366), (1091, 28340), (1417, 21820), (2180, 14183), (2182, 14170), (2834, 10910), (4364, 7085), (5455, 5668)]