218402388

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{1381}}^1$

素因数の和:1605

約数の個数: 72

約数和(自身を含む): 579511296

約数和(自身を除く): 361108908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 191, 207, 276, 382, 414, 573, 764, 828, 1146, 1381, 1719, 2292, 2762, 3438, 4143, 4393, 5524, 6876, 8286, 8786, 12429, 13179, 16572, 17572, 24858, 26358, 31763, 39537, 49716, 52716, 63526, 79074, 95289, 127052, 158148, 190578, 263771, 285867, 381156, 527542, 571734, 791313, 1055084, 1143468, 1582626, 2373939, 3165252, 4747878, 6066733, 9495756, 12133466, 18200199, 24266932, 36400398, 54600597, 72800796, 109201194, 218402388]

約数ペア:

[(1, 218402388), (2, 109201194), (3, 72800796), (4, 54600597), (6, 36400398), (9, 24266932), (12, 18200199), (18, 12133466), (23, 9495756), (36, 6066733), (46, 4747878), (69, 3165252), (92, 2373939), (138, 1582626), (191, 1143468), (207, 1055084), (276, 791313), (382, 571734), (414, 527542), (573, 381156), (764, 285867), (828, 263771), (1146, 190578), (1381, 158148), (1719, 127052), (2292, 95289), (2762, 79074), (3438, 63526), (4143, 52716), (4393, 49716), (5524, 39537), (6876, 31763), (8286, 26358), (8786, 24858), (12429, 17572), (13179, 16572)]