243150980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{20641}}^1$

素因数の和:20700

約数の個数: 48

約数和(自身を含む): 554856960

約数和(自身を除く): 311705980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 20641, 41282, 82564, 103205, 206410, 392179, 412820, 639871, 784358, 1279742, 1568716, 1960895, 2559484, 3199355, 3921790, 6398710, 7843580, 12157549, 12797420, 24315098, 48630196, 60787745, 121575490, 243150980]

約数ペア:

[(1, 243150980), (2, 121575490), (4, 60787745), (5, 48630196), (10, 24315098), (19, 12797420), (20, 12157549), (31, 7843580), (38, 6398710), (62, 3921790), (76, 3199355), (95, 2559484), (124, 1960895), (155, 1568716), (190, 1279742), (310, 784358), (380, 639871), (589, 412820), (620, 392179), (1178, 206410), (2356, 103205), (2945, 82564), (5890, 41282), (11780, 20641)]