81545884

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{283}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 168327936

約数和(自身を除く): 86782052

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 251, 283, 287, 502, 566, 574, 1004, 1132, 1148, 1757, 1981, 3514, 3962, 7028, 7924, 10291, 11603, 20582, 23206, 41164, 46412, 71033, 72037, 81221, 142066, 144074, 162442, 284132, 288148, 324884, 497231, 994462, 1988924, 2912353, 5824706, 11649412, 20386471, 40772942, 81545884]

約数ペア:

[(1, 81545884), (2, 40772942), (4, 20386471), (7, 11649412), (14, 5824706), (28, 2912353), (41, 1988924), (82, 994462), (164, 497231), (251, 324884), (283, 288148), (287, 284132), (502, 162442), (566, 144074), (574, 142066), (1004, 81221), (1132, 72037), (1148, 71033), (1757, 46412), (1981, 41164), (3514, 23206), (3962, 20582), (7028, 11603), (7924, 10291)]