21695878360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{622729}}^1$

素因数の和:622820

約数の個数: 64

約数和(自身を含む): 53355506400

約数和(自身を除く): 31659628040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 871, 1340, 1742, 2680, 3484, 4355, 6968, 8710, 17420, 34840, 622729, 1245458, 2490916, 3113645, 4981832, 6227290, 8095477, 12454580, 16190954, 24909160, 32381908, 40477385, 41722843, 64763816, 80954770, 83445686, 161909540, 166891372, 208614215, 323819080, 333782744, 417228430, 542396959, 834456860, 1084793918, 1668913720, 2169587836, 2711984795, 4339175672, 5423969590, 10847939180, 21695878360]

約数ペア:

[(1, 21695878360), (2, 10847939180), (4, 5423969590), (5, 4339175672), (8, 2711984795), (10, 2169587836), (13, 1668913720), (20, 1084793918), (26, 834456860), (40, 542396959), (52, 417228430), (65, 333782744), (67, 323819080), (104, 208614215), (130, 166891372), (134, 161909540), (260, 83445686), (268, 80954770), (335, 64763816), (520, 41722843), (536, 40477385), (670, 32381908), (871, 24909160), (1340, 16190954), (1742, 12454580), (2680, 8095477), (3484, 6227290), (4355, 4981832), (6968, 3113645), (8710, 2490916), (17420, 1245458), (34840, 622729)]