20328064

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 43084800

約数和(自身を除く): 22756736

約数列:

[1, 2, 4, 8, 16, 31, 32, 47, 62, 64, 94, 109, 124, 128, 188, 218, 248, 376, 436, 496, 752, 872, 992, 1457, 1504, 1744, 1984, 2914, 3008, 3379, 3488, 3968, 5123, 5828, 6016, 6758, 6976, 10246, 11656, 13516, 13952, 20492, 23312, 27032, 40984, 46624, 54064, 81968, 93248, 108128, 158813, 163936, 186496, 216256, 317626, 327872, 432512, 635252, 655744, 1270504, 2541008, 5082016, 10164032, 20328064]

約数ペア:

[(1, 20328064), (2, 10164032), (4, 5082016), (8, 2541008), (16, 1270504), (31, 655744), (32, 635252), (47, 432512), (62, 327872), (64, 317626), (94, 216256), (109, 186496), (124, 163936), (128, 158813), (188, 108128), (218, 93248), (248, 81968), (376, 54064), (436, 46624), (496, 40984), (752, 27032), (872, 23312), (992, 20492), (1457, 13952), (1504, 13516), (1744, 11656), (1984, 10246), (2914, 6976), (3008, 6758), (3379, 6016), (3488, 5828), (3968, 5123)]