2788760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 7015680

約数和(自身を除く): 4226920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 173, 248, 260, 310, 346, 403, 520, 620, 692, 806, 865, 1240, 1384, 1612, 1730, 2015, 2249, 3224, 3460, 4030, 4498, 5363, 6920, 8060, 8996, 10726, 11245, 16120, 17992, 21452, 22490, 26815, 42904, 44980, 53630, 69719, 89960, 107260, 139438, 214520, 278876, 348595, 557752, 697190, 1394380, 2788760]

約数ペア:

[(1, 2788760), (2, 1394380), (4, 697190), (5, 557752), (8, 348595), (10, 278876), (13, 214520), (20, 139438), (26, 107260), (31, 89960), (40, 69719), (52, 53630), (62, 44980), (65, 42904), (104, 26815), (124, 22490), (130, 21452), (155, 17992), (173, 16120), (248, 11245), (260, 10726), (310, 8996), (346, 8060), (403, 6920), (520, 5363), (620, 4498), (692, 4030), (806, 3460), (865, 3224), (1240, 2249), (1384, 2015), (1612, 1730)]