240636879

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 428820480

約数和(自身を除く): 188183601

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 197, 207, 281, 483, 591, 621, 843, 1379, 1449, 1773, 1967, 2529, 4137, 4347, 4531, 5319, 5901, 6463, 7587, 12411, 13593, 17703, 19389, 31717, 37233, 40779, 45241, 53109, 55357, 58167, 95151, 122337, 135723, 166071, 174501, 285453, 387499, 407169, 498213, 856359, 1162497, 1221507, 1273211, 1494639, 3487491, 3819633, 8912477, 10462473, 11458899, 26737431, 34376697, 80212293, 240636879]

約数ペア:

[(1, 240636879), (3, 80212293), (7, 34376697), (9, 26737431), (21, 11458899), (23, 10462473), (27, 8912477), (63, 3819633), (69, 3487491), (161, 1494639), (189, 1273211), (197, 1221507), (207, 1162497), (281, 856359), (483, 498213), (591, 407169), (621, 387499), (843, 285453), (1379, 174501), (1449, 166071), (1773, 135723), (1967, 122337), (2529, 95151), (4137, 58167), (4347, 55357), (4531, 53109), (5319, 45241), (5901, 40779), (6463, 37233), (7587, 31717), (12411, 19389), (13593, 17703)]