639794772

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{9781}}^1$

素因数の和:9893

約数の個数: 72

約数和(自身を含む): 1709111040

約数和(自身を除く): 1069316268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 79, 92, 138, 158, 207, 237, 276, 316, 414, 474, 711, 828, 948, 1422, 1817, 2844, 3634, 5451, 7268, 9781, 10902, 16353, 19562, 21804, 29343, 32706, 39124, 58686, 65412, 88029, 117372, 176058, 224963, 352116, 449926, 674889, 772699, 899852, 1349778, 1545398, 2024667, 2318097, 2699556, 3090796, 4049334, 4636194, 6954291, 8098668, 9272388, 13908582, 17772077, 27817164, 35544154, 53316231, 71088308, 106632462, 159948693, 213264924, 319897386, 639794772]

約数ペア:

[(1, 639794772), (2, 319897386), (3, 213264924), (4, 159948693), (6, 106632462), (9, 71088308), (12, 53316231), (18, 35544154), (23, 27817164), (36, 17772077), (46, 13908582), (69, 9272388), (79, 8098668), (92, 6954291), (138, 4636194), (158, 4049334), (207, 3090796), (237, 2699556), (276, 2318097), (316, 2024667), (414, 1545398), (474, 1349778), (711, 899852), (828, 772699), (948, 674889), (1422, 449926), (1817, 352116), (2844, 224963), (3634, 176058), (5451, 117372), (7268, 88029), (9781, 65412), (10902, 58686), (16353, 39124), (19562, 32706), (21804, 29343)]