309751988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{977}}^1$

素因数の和:1081

約数の個数: 72

約数和(自身を含む): 681532992

約数和(自身を除く): 371781004

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 67, 91, 134, 169, 182, 268, 338, 364, 469, 676, 871, 938, 977, 1183, 1742, 1876, 1954, 2366, 3484, 3908, 4732, 6097, 6839, 11323, 12194, 12701, 13678, 22646, 24388, 25402, 27356, 45292, 50804, 65459, 79261, 88907, 130918, 158522, 165113, 177814, 261836, 317044, 330226, 355628, 458213, 660452, 850967, 916426, 1155791, 1701934, 1832852, 2311582, 3403868, 4623164, 5956769, 11062571, 11913538, 22125142, 23827076, 44250284, 77437997, 154875994, 309751988]

約数ペア:

[(1, 309751988), (2, 154875994), (4, 77437997), (7, 44250284), (13, 23827076), (14, 22125142), (26, 11913538), (28, 11062571), (52, 5956769), (67, 4623164), (91, 3403868), (134, 2311582), (169, 1832852), (182, 1701934), (268, 1155791), (338, 916426), (364, 850967), (469, 660452), (676, 458213), (871, 355628), (938, 330226), (977, 317044), (1183, 261836), (1742, 177814), (1876, 165113), (1954, 158522), (2366, 130918), (3484, 88907), (3908, 79261), (4732, 65459), (6097, 50804), (6839, 45292), (11323, 27356), (12194, 25402), (12701, 24388), (13678, 22646)]