19392680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 46189440

約数和(自身を除く): 26796760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 107, 115, 184, 197, 214, 230, 394, 428, 460, 535, 788, 856, 920, 985, 1070, 1576, 1970, 2140, 2461, 3940, 4280, 4531, 4922, 7880, 9062, 9844, 12305, 18124, 19688, 21079, 22655, 24610, 36248, 42158, 45310, 49220, 84316, 90620, 98440, 105395, 168632, 181240, 210790, 421580, 484817, 843160, 969634, 1939268, 2424085, 3878536, 4848170, 9696340, 19392680]

約数ペア:

[(1, 19392680), (2, 9696340), (4, 4848170), (5, 3878536), (8, 2424085), (10, 1939268), (20, 969634), (23, 843160), (40, 484817), (46, 421580), (92, 210790), (107, 181240), (115, 168632), (184, 105395), (197, 98440), (214, 90620), (230, 84316), (394, 49220), (428, 45310), (460, 42158), (535, 36248), (788, 24610), (856, 22655), (920, 21079), (985, 19688), (1070, 18124), (1576, 12305), (1970, 9844), (2140, 9062), (2461, 7880), (3940, 4922), (4280, 4531)]