55909880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1361}}^1$

素因数の和:1464

約数の個数: 64

約数和(自身を含む): 137289600

約数和(自身を除く): 81379720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 316, 395, 520, 632, 790, 1027, 1361, 1580, 2054, 2722, 3160, 4108, 5135, 5444, 6805, 8216, 10270, 10888, 13610, 17693, 20540, 27220, 35386, 41080, 54440, 70772, 88465, 107519, 141544, 176930, 215038, 353860, 430076, 537595, 707720, 860152, 1075190, 1397747, 2150380, 2795494, 4300760, 5590988, 6988735, 11181976, 13977470, 27954940, 55909880]

約数ペア:

[(1, 55909880), (2, 27954940), (4, 13977470), (5, 11181976), (8, 6988735), (10, 5590988), (13, 4300760), (20, 2795494), (26, 2150380), (40, 1397747), (52, 1075190), (65, 860152), (79, 707720), (104, 537595), (130, 430076), (158, 353860), (260, 215038), (316, 176930), (395, 141544), (520, 107519), (632, 88465), (790, 70772), (1027, 54440), (1361, 41080), (1580, 35386), (2054, 27220), (2722, 20540), (3160, 17693), (4108, 13610), (5135, 10888), (5444, 10270), (6805, 8216)]