1278016860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{239329}}^1$

素因数の和:239430

約数の個数: 48

約数和(自身を含む): 3618669600

約数和(自身を除く): 2340652740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 5340, 239329, 478658, 717987, 957316, 1196645, 1435974, 2393290, 2871948, 3589935, 4786580, 7179870, 14359740, 21300281, 42600562, 63900843, 85201124, 106501405, 127801686, 213002810, 255603372, 319504215, 426005620, 639008430, 1278016860]

約数ペア:

[(1, 1278016860), (2, 639008430), (3, 426005620), (4, 319504215), (5, 255603372), (6, 213002810), (10, 127801686), (12, 106501405), (15, 85201124), (20, 63900843), (30, 42600562), (60, 21300281), (89, 14359740), (178, 7179870), (267, 4786580), (356, 3589935), (445, 2871948), (534, 2393290), (890, 1435974), (1068, 1196645), (1335, 957316), (1780, 717987), (2670, 478658), (5340, 239329)]