28408716

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1427}}^1$

素因数の和:1523

約数の個数: 72

約数和(自身を含む): 83166720

約数和(自身を除く): 54758004

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1106, 1422, 1427, 1659, 2212, 2844, 2854, 3318, 4281, 4977, 5708, 6636, 8562, 9954, 9989, 12843, 17124, 19908, 19978, 25686, 29967, 39956, 51372, 59934, 89901, 112733, 119868, 179802, 225466, 338199, 359604, 450932, 676398, 789131, 1014597, 1352796, 1578262, 2029194, 2367393, 3156524, 4058388, 4734786, 7102179, 9469572, 14204358, 28408716]

約数ペア:

[(1, 28408716), (2, 14204358), (3, 9469572), (4, 7102179), (6, 4734786), (7, 4058388), (9, 3156524), (12, 2367393), (14, 2029194), (18, 1578262), (21, 1352796), (28, 1014597), (36, 789131), (42, 676398), (63, 450932), (79, 359604), (84, 338199), (126, 225466), (158, 179802), (237, 119868), (252, 112733), (316, 89901), (474, 59934), (553, 51372), (711, 39956), (948, 29967), (1106, 25686), (1422, 19978), (1427, 19908), (1659, 17124), (2212, 12843), (2844, 9989), (2854, 9954), (3318, 8562), (4281, 6636), (4977, 5708)]