2598440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 6652800

約数和(自身を除く): 4054360

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 263, 380, 494, 520, 526, 760, 988, 1052, 1235, 1315, 1976, 2104, 2470, 2630, 3419, 4940, 4997, 5260, 6838, 9880, 9994, 10520, 13676, 17095, 19988, 24985, 27352, 34190, 39976, 49970, 64961, 68380, 99940, 129922, 136760, 199880, 259844, 324805, 519688, 649610, 1299220, 2598440]

約数ペア:

[(1, 2598440), (2, 1299220), (4, 649610), (5, 519688), (8, 324805), (10, 259844), (13, 199880), (19, 136760), (20, 129922), (26, 99940), (38, 68380), (40, 64961), (52, 49970), (65, 39976), (76, 34190), (95, 27352), (104, 24985), (130, 19988), (152, 17095), (190, 13676), (247, 10520), (260, 9994), (263, 9880), (380, 6838), (494, 5260), (520, 4997), (526, 4940), (760, 3419), (988, 2630), (1052, 2470), (1235, 2104), (1315, 1976)]