71981690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 156280320

約数和(自身を除く): 84298630

約数列:

[1, 2, 5, 10, 11, 19, 22, 31, 38, 55, 62, 95, 101, 110, 121, 155, 190, 202, 209, 242, 310, 341, 418, 505, 589, 605, 682, 1010, 1045, 1111, 1178, 1210, 1705, 1919, 2090, 2222, 2299, 2945, 3131, 3410, 3751, 3838, 4598, 5555, 5890, 6262, 6479, 7502, 9595, 11110, 11495, 12221, 12958, 15655, 18755, 19190, 21109, 22990, 24442, 31310, 32395, 34441, 37510, 42218, 59489, 61105, 64790, 68882, 71269, 105545, 118978, 122210, 142538, 172205, 211090, 232199, 297445, 344410, 356345, 378851, 464398, 594890, 654379, 712690, 757702, 1160995, 1308758, 1894255, 2321990, 3271895, 3788510, 6543790, 7198169, 14396338, 35990845, 71981690]

約数ペア:

[(1, 71981690), (2, 35990845), (5, 14396338), (10, 7198169), (11, 6543790), (19, 3788510), (22, 3271895), (31, 2321990), (38, 1894255), (55, 1308758), (62, 1160995), (95, 757702), (101, 712690), (110, 654379), (121, 594890), (155, 464398), (190, 378851), (202, 356345), (209, 344410), (242, 297445), (310, 232199), (341, 211090), (418, 172205), (505, 142538), (589, 122210), (605, 118978), (682, 105545), (1010, 71269), (1045, 68882), (1111, 64790), (1178, 61105), (1210, 59489), (1705, 42218), (1919, 37510), (2090, 34441), (2222, 32395), (2299, 31310), (2945, 24442), (3131, 22990), (3410, 21109), (3751, 19190), (3838, 18755), (4598, 15655), (5555, 12958), (5890, 12221), (6262, 11495), (6479, 11110), (7502, 9595)]