131034140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{347}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 280627200

約数和(自身を除く): 149593060

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 239, 316, 347, 395, 478, 694, 790, 956, 1195, 1388, 1580, 1735, 2390, 3470, 4780, 6940, 18881, 27413, 37762, 54826, 75524, 82933, 94405, 109652, 137065, 165866, 188810, 274130, 331732, 377620, 414665, 548260, 829330, 1658660, 6551707, 13103414, 26206828, 32758535, 65517070, 131034140]

約数ペア:

[(1, 131034140), (2, 65517070), (4, 32758535), (5, 26206828), (10, 13103414), (20, 6551707), (79, 1658660), (158, 829330), (239, 548260), (316, 414665), (347, 377620), (395, 331732), (478, 274130), (694, 188810), (790, 165866), (956, 137065), (1195, 109652), (1388, 94405), (1580, 82933), (1735, 75524), (2390, 54826), (3470, 37762), (4780, 27413), (6940, 18881)]