209129512

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 429624000

約数和(自身を除く): 220494488

約数列:

[1, 2, 4, 8, 17, 34, 59, 67, 68, 118, 134, 136, 236, 268, 389, 472, 536, 778, 1003, 1139, 1556, 2006, 2278, 3112, 3953, 4012, 4556, 6613, 7906, 8024, 9112, 13226, 15812, 22951, 26063, 26452, 31624, 45902, 52126, 52904, 67201, 91804, 104252, 134402, 183608, 208504, 268804, 390167, 443071, 537608, 780334, 886142, 1537717, 1560668, 1772284, 3075434, 3121336, 3544568, 6150868, 12301736, 26141189, 52282378, 104564756, 209129512]

約数ペア:

[(1, 209129512), (2, 104564756), (4, 52282378), (8, 26141189), (17, 12301736), (34, 6150868), (59, 3544568), (67, 3121336), (68, 3075434), (118, 1772284), (134, 1560668), (136, 1537717), (236, 886142), (268, 780334), (389, 537608), (472, 443071), (536, 390167), (778, 268804), (1003, 208504), (1139, 183608), (1556, 134402), (2006, 104252), (2278, 91804), (3112, 67201), (3953, 52904), (4012, 52126), (4556, 45902), (6613, 31624), (7906, 26452), (8024, 26063), (9112, 22951), (13226, 15812)]