665677384

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 1328486400

約数和(自身を除く): 662809016

約数列:

[1, 2, 4, 8, 31, 61, 62, 79, 122, 124, 158, 244, 248, 316, 488, 557, 632, 1114, 1891, 2228, 2449, 3782, 4456, 4819, 4898, 7564, 9638, 9796, 15128, 17267, 19276, 19592, 33977, 34534, 38552, 44003, 67954, 69068, 88006, 135908, 138136, 149389, 176012, 271816, 298778, 352024, 597556, 1053287, 1195112, 1364093, 2106574, 2684183, 2728186, 4213148, 5368366, 5456372, 8426296, 10736732, 10912744, 21473464, 83209673, 166419346, 332838692, 665677384]

約数ペア:

[(1, 665677384), (2, 332838692), (4, 166419346), (8, 83209673), (31, 21473464), (61, 10912744), (62, 10736732), (79, 8426296), (122, 5456372), (124, 5368366), (158, 4213148), (244, 2728186), (248, 2684183), (316, 2106574), (488, 1364093), (557, 1195112), (632, 1053287), (1114, 597556), (1891, 352024), (2228, 298778), (2449, 271816), (3782, 176012), (4456, 149389), (4819, 138136), (4898, 135908), (7564, 88006), (9638, 69068), (9796, 67954), (15128, 44003), (17267, 38552), (19276, 34534), (19592, 33977)]