128663612

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{719}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 289578240

約数和(自身を除く): 160914628

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 83, 98, 154, 166, 196, 308, 332, 539, 581, 719, 913, 1078, 1162, 1438, 1826, 2156, 2324, 2876, 3652, 4067, 5033, 6391, 7909, 8134, 10066, 12782, 15818, 16268, 20132, 25564, 31636, 35231, 44737, 55363, 59677, 70462, 89474, 110726, 119354, 140924, 178948, 221452, 238708, 387541, 417739, 656447, 775082, 835478, 1312894, 1550164, 1670956, 2625788, 2924173, 4595129, 5848346, 9190258, 11696692, 18380516, 32165903, 64331806, 128663612]

約数ペア:

[(1, 128663612), (2, 64331806), (4, 32165903), (7, 18380516), (11, 11696692), (14, 9190258), (22, 5848346), (28, 4595129), (44, 2924173), (49, 2625788), (77, 1670956), (83, 1550164), (98, 1312894), (154, 835478), (166, 775082), (196, 656447), (308, 417739), (332, 387541), (539, 238708), (581, 221452), (719, 178948), (913, 140924), (1078, 119354), (1162, 110726), (1438, 89474), (1826, 70462), (2156, 59677), (2324, 55363), (2876, 44737), (3652, 35231), (4067, 31636), (5033, 25564), (6391, 20132), (7909, 16268), (8134, 15818), (10066, 12782)]