212218820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{317}}^1$

素因数の和:533

約数の個数: 96

約数和(自身を含む): 519281280

約数和(自身を除く): 307062460

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 179, 187, 220, 317, 340, 358, 374, 634, 716, 748, 895, 935, 1268, 1585, 1790, 1870, 1969, 3043, 3170, 3487, 3580, 3740, 3938, 5389, 6086, 6340, 6974, 7876, 9845, 10778, 12172, 13948, 15215, 17435, 19690, 21556, 26945, 30430, 33473, 34870, 39380, 53890, 56743, 59279, 60860, 66946, 69740, 107780, 113486, 118558, 133892, 167365, 226972, 237116, 283715, 296395, 334730, 567430, 592790, 624173, 669460, 964631, 1134860, 1185580, 1248346, 1929262, 2496692, 3120865, 3858524, 4823155, 6241730, 9646310, 10610941, 12483460, 19292620, 21221882, 42443764, 53054705, 106109410, 212218820]

約数ペア:

[(1, 212218820), (2, 106109410), (4, 53054705), (5, 42443764), (10, 21221882), (11, 19292620), (17, 12483460), (20, 10610941), (22, 9646310), (34, 6241730), (44, 4823155), (55, 3858524), (68, 3120865), (85, 2496692), (110, 1929262), (170, 1248346), (179, 1185580), (187, 1134860), (220, 964631), (317, 669460), (340, 624173), (358, 592790), (374, 567430), (634, 334730), (716, 296395), (748, 283715), (895, 237116), (935, 226972), (1268, 167365), (1585, 133892), (1790, 118558), (1870, 113486), (1969, 107780), (3043, 69740), (3170, 66946), (3487, 60860), (3580, 59279), (3740, 56743), (3938, 53890), (5389, 39380), (6086, 34870), (6340, 33473), (6974, 30430), (7876, 26945), (9845, 21556), (10778, 19690), (12172, 17435), (13948, 15215)]