20615050

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 20632310

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 79, 85, 158, 170, 307, 395, 425, 614, 790, 850, 1343, 1535, 1975, 2686, 3070, 3950, 5219, 6715, 7675, 10438, 13430, 15350, 24253, 26095, 33575, 48506, 52190, 67150, 121265, 130475, 242530, 260950, 412301, 606325, 824602, 1212650, 2061505, 4123010, 10307525, 20615050]

約数ペア:

[(1, 20615050), (2, 10307525), (5, 4123010), (10, 2061505), (17, 1212650), (25, 824602), (34, 606325), (50, 412301), (79, 260950), (85, 242530), (158, 130475), (170, 121265), (307, 67150), (395, 52190), (425, 48506), (614, 33575), (790, 26095), (850, 24253), (1343, 15350), (1535, 13430), (1975, 10438), (2686, 7675), (3070, 6715), (3950, 5219)]