28685580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:924

約数の個数: 144

約数和(自身を含む): 102041856

約数和(自身を除く): 73356276

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 132, 140, 147, 154, 165, 196, 210, 220, 231, 245, 294, 308, 330, 385, 420, 462, 490, 539, 588, 660, 735, 770, 887, 924, 980, 1078, 1155, 1470, 1540, 1617, 1774, 2156, 2310, 2661, 2695, 2940, 3234, 3548, 4435, 4620, 5322, 5390, 6209, 6468, 8085, 8870, 9757, 10644, 10780, 12418, 13305, 16170, 17740, 18627, 19514, 24836, 26610, 29271, 31045, 32340, 37254, 39028, 43463, 48785, 53220, 58542, 62090, 68299, 74508, 86926, 93135, 97570, 117084, 124180, 130389, 136598, 146355, 173852, 186270, 195140, 204897, 217315, 260778, 273196, 292710, 341495, 372540, 409794, 434630, 478093, 521556, 585420, 651945, 682990, 819588, 869260, 956186, 1024485, 1303890, 1365980, 1434279, 1912372, 2048970, 2390465, 2607780, 2868558, 4097940, 4780930, 5737116, 7171395, 9561860, 14342790, 28685580]

約数ペア:

[(1, 28685580), (2, 14342790), (3, 9561860), (4, 7171395), (5, 5737116), (6, 4780930), (7, 4097940), (10, 2868558), (11, 2607780), (12, 2390465), (14, 2048970), (15, 1912372), (20, 1434279), (21, 1365980), (22, 1303890), (28, 1024485), (30, 956186), (33, 869260), (35, 819588), (42, 682990), (44, 651945), (49, 585420), (55, 521556), (60, 478093), (66, 434630), (70, 409794), (77, 372540), (84, 341495), (98, 292710), (105, 273196), (110, 260778), (132, 217315), (140, 204897), (147, 195140), (154, 186270), (165, 173852), (196, 146355), (210, 136598), (220, 130389), (231, 124180), (245, 117084), (294, 97570), (308, 93135), (330, 86926), (385, 74508), (420, 68299), (462, 62090), (490, 58542), (539, 53220), (588, 48785), (660, 43463), (735, 39028), (770, 37254), (887, 32340), (924, 31045), (980, 29271), (1078, 26610), (1155, 24836), (1470, 19514), (1540, 18627), (1617, 17740), (1774, 16170), (2156, 13305), (2310, 12418), (2661, 10780), (2695, 10644), (2940, 9757), (3234, 8870), (3548, 8085), (4435, 6468), (4620, 6209), (5322, 5390)]