1388402456

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1873}}^1$

素因数の和:1985

約数の個数: 96

約数和(自身を含む): 3178903680

約数和(自身を除く): 1790501224

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 61, 62, 98, 122, 124, 196, 217, 244, 248, 392, 427, 434, 488, 854, 868, 1519, 1708, 1736, 1873, 1891, 2989, 3038, 3416, 3746, 3782, 5978, 6076, 7492, 7564, 11956, 12152, 13111, 13237, 14984, 15128, 23912, 26222, 26474, 52444, 52948, 58063, 91777, 92659, 104888, 105896, 114253, 116126, 183554, 185318, 228506, 232252, 367108, 370636, 406441, 457012, 464504, 734216, 741272, 799771, 812882, 914024, 1599542, 1625764, 2845087, 3199084, 3251528, 3541843, 5598397, 5690174, 6398168, 7083686, 11196794, 11380348, 14167372, 22393588, 22760696, 24792901, 28334744, 44787176, 49585802, 99171604, 173550307, 198343208, 347100614, 694201228, 1388402456]

約数ペア:

[(1, 1388402456), (2, 694201228), (4, 347100614), (7, 198343208), (8, 173550307), (14, 99171604), (28, 49585802), (31, 44787176), (49, 28334744), (56, 24792901), (61, 22760696), (62, 22393588), (98, 14167372), (122, 11380348), (124, 11196794), (196, 7083686), (217, 6398168), (244, 5690174), (248, 5598397), (392, 3541843), (427, 3251528), (434, 3199084), (488, 2845087), (854, 1625764), (868, 1599542), (1519, 914024), (1708, 812882), (1736, 799771), (1873, 741272), (1891, 734216), (2989, 464504), (3038, 457012), (3416, 406441), (3746, 370636), (3782, 367108), (5978, 232252), (6076, 228506), (7492, 185318), (7564, 183554), (11956, 116126), (12152, 114253), (13111, 105896), (13237, 104888), (14984, 92659), (15128, 91777), (23912, 58063), (26222, 52948), (26474, 52444)]