81703820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 199051776

約数和(自身を除く): 117347956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 67, 92, 110, 115, 134, 220, 230, 241, 253, 268, 335, 460, 482, 506, 670, 737, 964, 1012, 1205, 1265, 1340, 1474, 1541, 2410, 2530, 2651, 2948, 3082, 3685, 4820, 5060, 5302, 5543, 6164, 7370, 7705, 10604, 11086, 13255, 14740, 15410, 16147, 16951, 22172, 26510, 27715, 30820, 32294, 33902, 53020, 55430, 60973, 64588, 67804, 80735, 84755, 110860, 121946, 161470, 169510, 177617, 243892, 304865, 322940, 339020, 355234, 371381, 609730, 710468, 742762, 888085, 1219460, 1485524, 1776170, 1856905, 3552340, 3713810, 4085191, 7427620, 8170382, 16340764, 20425955, 40851910, 81703820]

約数ペア:

[(1, 81703820), (2, 40851910), (4, 20425955), (5, 16340764), (10, 8170382), (11, 7427620), (20, 4085191), (22, 3713810), (23, 3552340), (44, 1856905), (46, 1776170), (55, 1485524), (67, 1219460), (92, 888085), (110, 742762), (115, 710468), (134, 609730), (220, 371381), (230, 355234), (241, 339020), (253, 322940), (268, 304865), (335, 243892), (460, 177617), (482, 169510), (506, 161470), (670, 121946), (737, 110860), (964, 84755), (1012, 80735), (1205, 67804), (1265, 64588), (1340, 60973), (1474, 55430), (1541, 53020), (2410, 33902), (2530, 32294), (2651, 30820), (2948, 27715), (3082, 26510), (3685, 22172), (4820, 16951), (5060, 16147), (5302, 15410), (5543, 14740), (6164, 13255), (7370, 11086), (7705, 10604)]