1215922180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1627}}^1$

素因数の和:1769

約数の個数: 96

約数和(自身を含む): 2888202240

約数和(自身を除く): 1672280060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 79, 86, 110, 158, 172, 215, 220, 316, 395, 430, 473, 790, 860, 869, 946, 1580, 1627, 1738, 1892, 2365, 3254, 3397, 3476, 4345, 4730, 6508, 6794, 8135, 8690, 9460, 13588, 16270, 16985, 17380, 17897, 32540, 33970, 35794, 37367, 67940, 69961, 71588, 74734, 89485, 128533, 139922, 149468, 178970, 186835, 257066, 279844, 349805, 357940, 373670, 514132, 642665, 699610, 747340, 769571, 1285330, 1399220, 1413863, 1539142, 2570660, 2827726, 3078284, 3847855, 5526919, 5655452, 7069315, 7695710, 11053838, 14138630, 15391420, 22107676, 27634595, 28277260, 55269190, 60796109, 110538380, 121592218, 243184436, 303980545, 607961090, 1215922180]

約数ペア:

[(1, 1215922180), (2, 607961090), (4, 303980545), (5, 243184436), (10, 121592218), (11, 110538380), (20, 60796109), (22, 55269190), (43, 28277260), (44, 27634595), (55, 22107676), (79, 15391420), (86, 14138630), (110, 11053838), (158, 7695710), (172, 7069315), (215, 5655452), (220, 5526919), (316, 3847855), (395, 3078284), (430, 2827726), (473, 2570660), (790, 1539142), (860, 1413863), (869, 1399220), (946, 1285330), (1580, 769571), (1627, 747340), (1738, 699610), (1892, 642665), (2365, 514132), (3254, 373670), (3397, 357940), (3476, 349805), (4345, 279844), (4730, 257066), (6508, 186835), (6794, 178970), (8135, 149468), (8690, 139922), (9460, 128533), (13588, 89485), (16270, 74734), (16985, 71588), (17380, 69961), (17897, 67940), (32540, 37367), (33970, 35794)]