173840140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{769}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 372556800

約数和(自身を除く): 198716660

約数列:

[1, 2, 4, 5, 10, 20, 89, 127, 178, 254, 356, 445, 508, 635, 769, 890, 1270, 1538, 1780, 2540, 3076, 3845, 7690, 11303, 15380, 22606, 45212, 56515, 68441, 97663, 113030, 136882, 195326, 226060, 273764, 342205, 390652, 488315, 684410, 976630, 1368820, 1953260, 8692007, 17384014, 34768028, 43460035, 86920070, 173840140]

約数ペア:

[(1, 173840140), (2, 86920070), (4, 43460035), (5, 34768028), (10, 17384014), (20, 8692007), (89, 1953260), (127, 1368820), (178, 976630), (254, 684410), (356, 488315), (445, 390652), (508, 342205), (635, 273764), (769, 226060), (890, 195326), (1270, 136882), (1538, 113030), (1780, 97663), (2540, 68441), (3076, 56515), (3845, 45212), (7690, 22606), (11303, 15380)]