155782760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{79481}}^1$

素因数の和:79506

約数の個数: 48

約数和(自身を含む): 407742660

約数和(自身を除く): 251959900

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 79481, 158962, 317924, 397405, 556367, 635848, 794810, 1112734, 1589620, 2225468, 2781835, 3179240, 3894569, 4450936, 5563670, 7789138, 11127340, 15578276, 19472845, 22254680, 31156552, 38945690, 77891380, 155782760]

約数ペア:

[(1, 155782760), (2, 77891380), (4, 38945690), (5, 31156552), (7, 22254680), (8, 19472845), (10, 15578276), (14, 11127340), (20, 7789138), (28, 5563670), (35, 4450936), (40, 3894569), (49, 3179240), (56, 2781835), (70, 2225468), (98, 1589620), (140, 1112734), (196, 794810), (245, 635848), (280, 556367), (392, 397405), (490, 317924), (980, 158962), (1960, 79481)]