28847560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{383}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 74649600

約数和(自身を除く): 45802040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 269, 280, 383, 538, 766, 1076, 1345, 1532, 1883, 1915, 2152, 2681, 2690, 3064, 3766, 3830, 5362, 5380, 7532, 7660, 9415, 10724, 10760, 13405, 15064, 15320, 18830, 21448, 26810, 37660, 53620, 75320, 103027, 107240, 206054, 412108, 515135, 721189, 824216, 1030270, 1442378, 2060540, 2884756, 3605945, 4121080, 5769512, 7211890, 14423780, 28847560]

約数ペア:

[(1, 28847560), (2, 14423780), (4, 7211890), (5, 5769512), (7, 4121080), (8, 3605945), (10, 2884756), (14, 2060540), (20, 1442378), (28, 1030270), (35, 824216), (40, 721189), (56, 515135), (70, 412108), (140, 206054), (269, 107240), (280, 103027), (383, 75320), (538, 53620), (766, 37660), (1076, 26810), (1345, 21448), (1532, 18830), (1883, 15320), (1915, 15064), (2152, 13405), (2681, 10760), (2690, 10724), (3064, 9415), (3766, 7660), (3830, 7532), (5362, 5380)]