1890253768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{887}}^1$

素因数の和:1598

約数の個数: 64

約数和(自身を含む): 3950392320

約数和(自身を除く): 2060138552

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 661, 806, 887, 1322, 1612, 1774, 2644, 3224, 3548, 5288, 7096, 8593, 11531, 17186, 20491, 23062, 27497, 34372, 40982, 46124, 54994, 68744, 81964, 92248, 109988, 163928, 219976, 266383, 357461, 532766, 586307, 714922, 1065532, 1172614, 1429844, 2131064, 2345228, 2859688, 4690456, 7621991, 15243982, 18175517, 30487964, 36351034, 60975928, 72702068, 145404136, 236281721, 472563442, 945126884, 1890253768]

約数ペア:

[(1, 1890253768), (2, 945126884), (4, 472563442), (8, 236281721), (13, 145404136), (26, 72702068), (31, 60975928), (52, 36351034), (62, 30487964), (104, 18175517), (124, 15243982), (248, 7621991), (403, 4690456), (661, 2859688), (806, 2345228), (887, 2131064), (1322, 1429844), (1612, 1172614), (1774, 1065532), (2644, 714922), (3224, 586307), (3548, 532766), (5288, 357461), (7096, 266383), (8593, 219976), (11531, 163928), (17186, 109988), (20491, 92248), (23062, 81964), (27497, 68744), (34372, 54994), (40982, 46124)]