1267981990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:550

約数の個数: 96

約数和(自身を含む): 2618269920

約数和(自身を除く): 1350287930

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 61, 82, 110, 121, 122, 205, 242, 305, 410, 419, 451, 605, 610, 671, 838, 902, 1210, 1342, 2095, 2255, 2501, 3355, 4190, 4510, 4609, 4961, 5002, 6710, 7381, 9218, 9922, 12505, 14762, 17179, 23045, 24805, 25010, 25559, 27511, 34358, 36905, 46090, 49610, 50699, 51118, 55022, 73810, 85895, 101398, 127795, 137555, 171790, 188969, 253495, 255590, 275110, 281149, 302621, 377938, 506990, 562298, 605242, 944845, 1047919, 1405745, 1513105, 1889690, 2078659, 2095838, 2811490, 3026210, 3092639, 4157318, 5239595, 6185278, 10393295, 10479190, 11527109, 15463195, 20786590, 23054218, 30926390, 57635545, 115271090, 126798199, 253596398, 633990995, 1267981990]

約数ペア:

[(1, 1267981990), (2, 633990995), (5, 253596398), (10, 126798199), (11, 115271090), (22, 57635545), (41, 30926390), (55, 23054218), (61, 20786590), (82, 15463195), (110, 11527109), (121, 10479190), (122, 10393295), (205, 6185278), (242, 5239595), (305, 4157318), (410, 3092639), (419, 3026210), (451, 2811490), (605, 2095838), (610, 2078659), (671, 1889690), (838, 1513105), (902, 1405745), (1210, 1047919), (1342, 944845), (2095, 605242), (2255, 562298), (2501, 506990), (3355, 377938), (4190, 302621), (4510, 281149), (4609, 275110), (4961, 255590), (5002, 253495), (6710, 188969), (7381, 171790), (9218, 137555), (9922, 127795), (12505, 101398), (14762, 85895), (17179, 73810), (23045, 55022), (24805, 51118), (25010, 50699), (25559, 49610), (27511, 46090), (34358, 36905)]