7921680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2539}}^1$

素因数の和:2568

約数の個数: 80

約数和(自身を含む): 26456640

約数和(自身を除く): 18534960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 2539, 3120, 5078, 7617, 10156, 12695, 15234, 20312, 25390, 30468, 33007, 38085, 40624, 50780, 60936, 66014, 76170, 99021, 101560, 121872, 132028, 152340, 165035, 198042, 203120, 264056, 304680, 330070, 396084, 495105, 528112, 609360, 660140, 792168, 990210, 1320280, 1584336, 1980420, 2640560, 3960840, 7921680]

約数ペア:

[(1, 7921680), (2, 3960840), (3, 2640560), (4, 1980420), (5, 1584336), (6, 1320280), (8, 990210), (10, 792168), (12, 660140), (13, 609360), (15, 528112), (16, 495105), (20, 396084), (24, 330070), (26, 304680), (30, 264056), (39, 203120), (40, 198042), (48, 165035), (52, 152340), (60, 132028), (65, 121872), (78, 101560), (80, 99021), (104, 76170), (120, 66014), (130, 60936), (156, 50780), (195, 40624), (208, 38085), (240, 33007), (260, 30468), (312, 25390), (390, 20312), (520, 15234), (624, 12695), (780, 10156), (1040, 7617), (1560, 5078), (2539, 3120)]