129637420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{7459}}^1$

素因数の和:7558

約数の個数: 48

約数和(自身を含む): 300787200

約数和(自身を除く): 171149780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 7459, 8690, 14918, 17380, 29836, 37295, 74590, 82049, 149180, 164098, 328196, 410245, 589261, 820490, 1178522, 1640980, 2357044, 2946305, 5892610, 6481871, 11785220, 12963742, 25927484, 32409355, 64818710, 129637420]

約数ペア:

[(1, 129637420), (2, 64818710), (4, 32409355), (5, 25927484), (10, 12963742), (11, 11785220), (20, 6481871), (22, 5892610), (44, 2946305), (55, 2357044), (79, 1640980), (110, 1178522), (158, 820490), (220, 589261), (316, 410245), (395, 328196), (790, 164098), (869, 149180), (1580, 82049), (1738, 74590), (3476, 37295), (4345, 29836), (7459, 17380), (8690, 14918)]