261197580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{1277}}^1$

素因数の和:1783

約数の個数: 96

約数和(自身を含む): 838204416

約数和(自身を除く): 577006836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 487, 974, 1277, 1461, 1948, 2435, 2554, 2922, 3409, 3831, 4870, 5108, 5844, 6385, 6818, 7305, 7662, 8939, 9740, 10227, 12770, 13636, 14610, 15324, 17045, 17878, 19155, 20454, 25540, 26817, 29220, 34090, 35756, 38310, 40908, 44695, 51135, 53634, 68180, 76620, 89390, 102270, 107268, 134085, 178780, 204540, 268170, 536340, 621899, 1243798, 1865697, 2487596, 3109495, 3731394, 4353293, 6218990, 7462788, 8706586, 9328485, 12437980, 13059879, 17413172, 18656970, 21766465, 26119758, 37313940, 43532930, 52239516, 65299395, 87065860, 130598790, 261197580]

約数ペア:

[(1, 261197580), (2, 130598790), (3, 87065860), (4, 65299395), (5, 52239516), (6, 43532930), (7, 37313940), (10, 26119758), (12, 21766465), (14, 18656970), (15, 17413172), (20, 13059879), (21, 12437980), (28, 9328485), (30, 8706586), (35, 7462788), (42, 6218990), (60, 4353293), (70, 3731394), (84, 3109495), (105, 2487596), (140, 1865697), (210, 1243798), (420, 621899), (487, 536340), (974, 268170), (1277, 204540), (1461, 178780), (1948, 134085), (2435, 107268), (2554, 102270), (2922, 89390), (3409, 76620), (3831, 68180), (4870, 53634), (5108, 51135), (5844, 44695), (6385, 40908), (6818, 38310), (7305, 35756), (7662, 34090), (8939, 29220), (9740, 26817), (10227, 25540), (12770, 20454), (13636, 19155), (14610, 17878), (15324, 17045)]