142400980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^3\times {\mathrm{239}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 310302720

約数和(自身を除く): 167901740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 239, 310, 478, 620, 956, 961, 1195, 1922, 2390, 3844, 4780, 4805, 7409, 9610, 14818, 19220, 29636, 29791, 37045, 59582, 74090, 119164, 148180, 148955, 229679, 297910, 459358, 595820, 918716, 1148395, 2296790, 4593580, 7120049, 14240098, 28480196, 35600245, 71200490, 142400980]

約数ペア:

[(1, 142400980), (2, 71200490), (4, 35600245), (5, 28480196), (10, 14240098), (20, 7120049), (31, 4593580), (62, 2296790), (124, 1148395), (155, 918716), (239, 595820), (310, 459358), (478, 297910), (620, 229679), (956, 148955), (961, 148180), (1195, 119164), (1922, 74090), (2390, 59582), (3844, 37045), (4780, 29791), (4805, 29636), (7409, 19220), (9610, 14818)]