989757956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 2074275840

約数和(自身を除く): 1084517884

約数列:

[1, 2, 4, 11, 19, 22, 31, 38, 44, 62, 76, 124, 181, 209, 211, 341, 362, 418, 422, 589, 682, 724, 836, 844, 1178, 1364, 1991, 2321, 2356, 3439, 3982, 4009, 4642, 5611, 6479, 6541, 6878, 7964, 8018, 9284, 11222, 12958, 13082, 13756, 16036, 22444, 25916, 26164, 37829, 38191, 44099, 61721, 71951, 75658, 76382, 88198, 106609, 123442, 124279, 143902, 151316, 152764, 176396, 213218, 246884, 248558, 287804, 420101, 426436, 497116, 725629, 840202, 1172699, 1183921, 1367069, 1451258, 1680404, 2345398, 2367842, 2734138, 2902516, 4690796, 4735684, 5468276, 7981919, 13023131, 15963838, 22494499, 26046262, 31927676, 44988998, 52092524, 89977996, 247439489, 494878978, 989757956]

約数ペア:

[(1, 989757956), (2, 494878978), (4, 247439489), (11, 89977996), (19, 52092524), (22, 44988998), (31, 31927676), (38, 26046262), (44, 22494499), (62, 15963838), (76, 13023131), (124, 7981919), (181, 5468276), (209, 4735684), (211, 4690796), (341, 2902516), (362, 2734138), (418, 2367842), (422, 2345398), (589, 1680404), (682, 1451258), (724, 1367069), (836, 1183921), (844, 1172699), (1178, 840202), (1364, 725629), (1991, 497116), (2321, 426436), (2356, 420101), (3439, 287804), (3982, 248558), (4009, 246884), (4642, 213218), (5611, 176396), (6479, 152764), (6541, 151316), (6878, 143902), (7964, 124279), (8018, 123442), (9284, 106609), (11222, 88198), (12958, 76382), (13082, 75658), (13756, 71951), (16036, 61721), (22444, 44099), (25916, 38191), (26164, 37829)]