80863640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:313

約数の個数: 128

約数和(自身を含む): 217969920

約数和(自身を除く): 137106280

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 67, 88, 104, 110, 130, 134, 143, 211, 220, 260, 268, 286, 335, 422, 440, 520, 536, 572, 670, 715, 737, 844, 871, 1055, 1144, 1340, 1430, 1474, 1688, 1742, 2110, 2321, 2680, 2743, 2860, 2948, 3484, 3685, 4220, 4355, 4642, 5486, 5720, 5896, 6968, 7370, 8440, 8710, 9284, 9581, 10972, 11605, 13715, 14137, 14740, 17420, 18568, 19162, 21944, 23210, 27430, 28274, 29480, 30173, 34840, 38324, 46420, 47905, 54860, 56548, 60346, 70685, 76648, 92840, 95810, 109720, 113096, 120692, 141370, 150865, 155507, 183781, 191620, 241384, 282740, 301730, 311014, 367562, 383240, 565480, 603460, 622028, 735124, 777535, 918905, 1206920, 1244056, 1470248, 1555070, 1837810, 2021591, 3110140, 3675620, 4043182, 6220280, 7351240, 8086364, 10107955, 16172728, 20215910, 40431820, 80863640]

約数ペア:

[(1, 80863640), (2, 40431820), (4, 20215910), (5, 16172728), (8, 10107955), (10, 8086364), (11, 7351240), (13, 6220280), (20, 4043182), (22, 3675620), (26, 3110140), (40, 2021591), (44, 1837810), (52, 1555070), (55, 1470248), (65, 1244056), (67, 1206920), (88, 918905), (104, 777535), (110, 735124), (130, 622028), (134, 603460), (143, 565480), (211, 383240), (220, 367562), (260, 311014), (268, 301730), (286, 282740), (335, 241384), (422, 191620), (440, 183781), (520, 155507), (536, 150865), (572, 141370), (670, 120692), (715, 113096), (737, 109720), (844, 95810), (871, 92840), (1055, 76648), (1144, 70685), (1340, 60346), (1430, 56548), (1474, 54860), (1688, 47905), (1742, 46420), (2110, 38324), (2321, 34840), (2680, 30173), (2743, 29480), (2860, 28274), (2948, 27430), (3484, 23210), (3685, 21944), (4220, 19162), (4355, 18568), (4642, 17420), (5486, 14740), (5720, 14137), (5896, 13715), (6968, 11605), (7370, 10972), (8440, 9581), (8710, 9284)]