428438140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{23209}}^1$

素因数の和:23302

約数の個数: 48

約数和(自身を含む): 982618560

約数和(自身を除く): 554180420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 18460, 23209, 46418, 92836, 116045, 232090, 301717, 464180, 603434, 1206868, 1508585, 1647839, 3017170, 3295678, 6034340, 6591356, 8239195, 16478390, 21421907, 32956780, 42843814, 85687628, 107109535, 214219070, 428438140]

約数ペア:

[(1, 428438140), (2, 214219070), (4, 107109535), (5, 85687628), (10, 42843814), (13, 32956780), (20, 21421907), (26, 16478390), (52, 8239195), (65, 6591356), (71, 6034340), (130, 3295678), (142, 3017170), (260, 1647839), (284, 1508585), (355, 1206868), (710, 603434), (923, 464180), (1420, 301717), (1846, 232090), (3692, 116045), (4615, 92836), (9230, 46418), (18460, 23209)]