28711320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21751}}^1$

素因数の和:21776

約数の個数: 64

約数和(自身を含む): 93968640

約数和(自身を除く): 65257320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 21751, 43502, 65253, 87004, 108755, 130506, 174008, 217510, 239261, 261012, 326265, 435020, 478522, 522024, 652530, 717783, 870040, 957044, 1196305, 1305060, 1435566, 1914088, 2392610, 2610120, 2871132, 3588915, 4785220, 5742264, 7177830, 9570440, 14355660, 28711320]

約数ペア:

[(1, 28711320), (2, 14355660), (3, 9570440), (4, 7177830), (5, 5742264), (6, 4785220), (8, 3588915), (10, 2871132), (11, 2610120), (12, 2392610), (15, 1914088), (20, 1435566), (22, 1305060), (24, 1196305), (30, 957044), (33, 870040), (40, 717783), (44, 652530), (55, 522024), (60, 478522), (66, 435020), (88, 326265), (110, 261012), (120, 239261), (132, 217510), (165, 174008), (220, 130506), (264, 108755), (330, 87004), (440, 65253), (660, 43502), (1320, 21751)]