31355940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{617}}^1$

素因数の和:658

約数の個数: 144

約数和(自身を含む): 110468736

約数和(自身を除く): 79112796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 605, 617, 660, 726, 770, 847, 924, 1155, 1210, 1234, 1452, 1540, 1694, 1815, 1851, 2310, 2420, 2468, 2541, 3085, 3388, 3630, 3702, 4235, 4319, 4620, 5082, 6170, 6787, 7260, 7404, 8470, 8638, 9255, 10164, 12340, 12705, 12957, 13574, 16940, 17276, 18510, 20361, 21595, 25410, 25914, 27148, 33935, 37020, 40722, 43190, 47509, 50820, 51828, 64785, 67870, 74657, 81444, 86380, 95018, 101805, 129570, 135740, 142527, 149314, 190036, 203610, 223971, 237545, 259140, 285054, 298628, 373285, 407220, 447942, 475090, 522599, 570108, 712635, 746570, 895884, 950180, 1045198, 1119855, 1425270, 1493140, 1567797, 2090396, 2239710, 2612995, 2850540, 3135594, 4479420, 5225990, 6271188, 7838985, 10451980, 15677970, 31355940]

約数ペア:

[(1, 31355940), (2, 15677970), (3, 10451980), (4, 7838985), (5, 6271188), (6, 5225990), (7, 4479420), (10, 3135594), (11, 2850540), (12, 2612995), (14, 2239710), (15, 2090396), (20, 1567797), (21, 1493140), (22, 1425270), (28, 1119855), (30, 1045198), (33, 950180), (35, 895884), (42, 746570), (44, 712635), (55, 570108), (60, 522599), (66, 475090), (70, 447942), (77, 407220), (84, 373285), (105, 298628), (110, 285054), (121, 259140), (132, 237545), (140, 223971), (154, 203610), (165, 190036), (210, 149314), (220, 142527), (231, 135740), (242, 129570), (308, 101805), (330, 95018), (363, 86380), (385, 81444), (420, 74657), (462, 67870), (484, 64785), (605, 51828), (617, 50820), (660, 47509), (726, 43190), (770, 40722), (847, 37020), (924, 33935), (1155, 27148), (1210, 25914), (1234, 25410), (1452, 21595), (1540, 20361), (1694, 18510), (1815, 17276), (1851, 16940), (2310, 13574), (2420, 12957), (2468, 12705), (2541, 12340), (3085, 10164), (3388, 9255), (3630, 8638), (3702, 8470), (4235, 7404), (4319, 7260), (4620, 6787), (5082, 6170)]