28772040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:403

約数の個数: 128

約数和(自身を含む): 95800320

約数和(自身を除く): 67028280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 213, 220, 264, 284, 307, 330, 355, 426, 440, 568, 614, 660, 710, 781, 852, 921, 1065, 1228, 1320, 1420, 1535, 1562, 1704, 1842, 2130, 2343, 2456, 2840, 3070, 3124, 3377, 3684, 3905, 4260, 4605, 4686, 6140, 6248, 6754, 7368, 7810, 8520, 9210, 9372, 10131, 11715, 12280, 13508, 15620, 16885, 18420, 18744, 20262, 21797, 23430, 27016, 31240, 33770, 36840, 40524, 43594, 46860, 50655, 65391, 67540, 81048, 87188, 93720, 101310, 108985, 130782, 135080, 174376, 202620, 217970, 239767, 261564, 326955, 405240, 435940, 479534, 523128, 653910, 719301, 871880, 959068, 1198835, 1307820, 1438602, 1918136, 2397670, 2615640, 2877204, 3596505, 4795340, 5754408, 7193010, 9590680, 14386020, 28772040]

約数ペア:

[(1, 28772040), (2, 14386020), (3, 9590680), (4, 7193010), (5, 5754408), (6, 4795340), (8, 3596505), (10, 2877204), (11, 2615640), (12, 2397670), (15, 1918136), (20, 1438602), (22, 1307820), (24, 1198835), (30, 959068), (33, 871880), (40, 719301), (44, 653910), (55, 523128), (60, 479534), (66, 435940), (71, 405240), (88, 326955), (110, 261564), (120, 239767), (132, 217970), (142, 202620), (165, 174376), (213, 135080), (220, 130782), (264, 108985), (284, 101310), (307, 93720), (330, 87188), (355, 81048), (426, 67540), (440, 65391), (568, 50655), (614, 46860), (660, 43594), (710, 40524), (781, 36840), (852, 33770), (921, 31240), (1065, 27016), (1228, 23430), (1320, 21797), (1420, 20262), (1535, 18744), (1562, 18420), (1704, 16885), (1842, 15620), (2130, 13508), (2343, 12280), (2456, 11715), (2840, 10131), (3070, 9372), (3124, 9210), (3377, 8520), (3684, 7810), (3905, 7368), (4260, 6754), (4605, 6248), (4686, 6140)]