81879816

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:299

約数の個数: 128

約数和(自身を含む): 232012800

約数和(自身を除く): 150132984

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 23, 24, 37, 38, 46, 57, 69, 74, 76, 92, 111, 114, 138, 148, 152, 184, 211, 222, 228, 276, 296, 422, 437, 444, 456, 552, 633, 703, 844, 851, 874, 888, 1266, 1311, 1406, 1688, 1702, 1748, 2109, 2532, 2553, 2622, 2812, 3404, 3496, 4009, 4218, 4853, 5064, 5106, 5244, 5624, 6808, 7807, 8018, 8436, 9706, 10212, 10488, 12027, 14559, 15614, 16036, 16169, 16872, 19412, 20424, 23421, 24054, 29118, 31228, 32072, 32338, 38824, 46842, 48108, 48507, 58236, 62456, 64676, 92207, 93684, 96216, 97014, 116472, 129352, 148333, 179561, 184414, 187368, 194028, 276621, 296666, 359122, 368828, 388056, 444999, 538683, 553242, 593332, 718244, 737656, 889998, 1077366, 1106484, 1186664, 1436488, 1779996, 2154732, 2212968, 3411659, 3559992, 4309464, 6823318, 10234977, 13646636, 20469954, 27293272, 40939908, 81879816]

約数ペア:

[(1, 81879816), (2, 40939908), (3, 27293272), (4, 20469954), (6, 13646636), (8, 10234977), (12, 6823318), (19, 4309464), (23, 3559992), (24, 3411659), (37, 2212968), (38, 2154732), (46, 1779996), (57, 1436488), (69, 1186664), (74, 1106484), (76, 1077366), (92, 889998), (111, 737656), (114, 718244), (138, 593332), (148, 553242), (152, 538683), (184, 444999), (211, 388056), (222, 368828), (228, 359122), (276, 296666), (296, 276621), (422, 194028), (437, 187368), (444, 184414), (456, 179561), (552, 148333), (633, 129352), (703, 116472), (844, 97014), (851, 96216), (874, 93684), (888, 92207), (1266, 64676), (1311, 62456), (1406, 58236), (1688, 48507), (1702, 48108), (1748, 46842), (2109, 38824), (2532, 32338), (2553, 32072), (2622, 31228), (2812, 29118), (3404, 24054), (3496, 23421), (4009, 20424), (4218, 19412), (4853, 16872), (5064, 16169), (5106, 16036), (5244, 15614), (5624, 14559), (6808, 12027), (7807, 10488), (8018, 10212), (8436, 9706)]