11487980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2647}}^1$

素因数の和:2694

約数の個数: 48

約数和(自身を含む): 28471296

約数和(自身を除く): 16983316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 2647, 4340, 5294, 10588, 13235, 18529, 26470, 37058, 52940, 74116, 82057, 92645, 164114, 185290, 328228, 370580, 410285, 574399, 820570, 1148798, 1641140, 2297596, 2871995, 5743990, 11487980]

約数ペア:

[(1, 11487980), (2, 5743990), (4, 2871995), (5, 2297596), (7, 1641140), (10, 1148798), (14, 820570), (20, 574399), (28, 410285), (31, 370580), (35, 328228), (62, 185290), (70, 164114), (124, 92645), (140, 82057), (155, 74116), (217, 52940), (310, 37058), (434, 26470), (620, 18529), (868, 13235), (1085, 10588), (2170, 5294), (2647, 4340)]