78193120

素因数分解:

$2^5\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1231}}^1$

素因数の和:1643

約数の個数: 48

約数和(自身を含む): 185347008

約数和(自身を除く): 107153888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 397, 794, 1231, 1588, 1985, 2462, 3176, 3970, 4924, 6155, 6352, 7940, 9848, 12310, 12704, 15880, 19696, 24620, 31760, 39392, 49240, 63520, 98480, 196960, 488707, 977414, 1954828, 2443535, 3909656, 4887070, 7819312, 9774140, 15638624, 19548280, 39096560, 78193120]

約数ペア:

[(1, 78193120), (2, 39096560), (4, 19548280), (5, 15638624), (8, 9774140), (10, 7819312), (16, 4887070), (20, 3909656), (32, 2443535), (40, 1954828), (80, 977414), (160, 488707), (397, 196960), (794, 98480), (1231, 63520), (1588, 49240), (1985, 39392), (2462, 31760), (3176, 24620), (3970, 19696), (4924, 15880), (6155, 12704), (6352, 12310), (7940, 9848)]