161004880

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12347}}^1$

素因数の和:12523

約数の個数: 40

約数和(自身を含む): 376663392

約数和(自身を除く): 215658512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 12347, 13040, 24694, 49388, 61735, 98776, 123470, 197552, 246940, 493880, 987760, 2012561, 4025122, 8050244, 10062805, 16100488, 20125610, 32200976, 40251220, 80502440, 161004880]

約数ペア:

[(1, 161004880), (2, 80502440), (4, 40251220), (5, 32200976), (8, 20125610), (10, 16100488), (16, 10062805), (20, 8050244), (40, 4025122), (80, 2012561), (163, 987760), (326, 493880), (652, 246940), (815, 197552), (1304, 123470), (1630, 98776), (2608, 61735), (3260, 49388), (6520, 24694), (12347, 13040)]