39855920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2017}}^1$

素因数の和:2062

約数の個数: 80

約数和(自身を含む): 105097440

約数和(自身を除く): 65241520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2017, 2470, 3952, 4034, 4940, 8068, 9880, 10085, 16136, 19760, 20170, 26221, 32272, 38323, 40340, 52442, 76646, 80680, 104884, 131105, 153292, 161360, 191615, 209768, 262210, 306584, 383230, 419536, 498199, 524420, 613168, 766460, 996398, 1048840, 1532920, 1992796, 2097680, 2490995, 3065840, 3985592, 4981990, 7971184, 9963980, 19927960, 39855920]

約数ペア:

[(1, 39855920), (2, 19927960), (4, 9963980), (5, 7971184), (8, 4981990), (10, 3985592), (13, 3065840), (16, 2490995), (19, 2097680), (20, 1992796), (26, 1532920), (38, 1048840), (40, 996398), (52, 766460), (65, 613168), (76, 524420), (80, 498199), (95, 419536), (104, 383230), (130, 306584), (152, 262210), (190, 209768), (208, 191615), (247, 161360), (260, 153292), (304, 131105), (380, 104884), (494, 80680), (520, 76646), (760, 52442), (988, 40340), (1040, 38323), (1235, 32272), (1520, 26221), (1976, 20170), (2017, 19760), (2470, 16136), (3952, 10085), (4034, 9880), (4940, 8068)]