28958240

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^2$

素因数の和:202

約数の個数: 72

約数和(自身を含む): 71680140

約数和(自身を除く): 42721900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 79, 80, 116, 145, 158, 160, 232, 290, 316, 395, 464, 580, 632, 790, 928, 1160, 1264, 1580, 2291, 2320, 2528, 3160, 4582, 4640, 6241, 6320, 9164, 11455, 12482, 12640, 18328, 22910, 24964, 31205, 36656, 45820, 49928, 62410, 73312, 91640, 99856, 124820, 180989, 183280, 199712, 249640, 361978, 366560, 499280, 723956, 904945, 998560, 1447912, 1809890, 2895824, 3619780, 5791648, 7239560, 14479120, 28958240]

約数ペア:

[(1, 28958240), (2, 14479120), (4, 7239560), (5, 5791648), (8, 3619780), (10, 2895824), (16, 1809890), (20, 1447912), (29, 998560), (32, 904945), (40, 723956), (58, 499280), (79, 366560), (80, 361978), (116, 249640), (145, 199712), (158, 183280), (160, 180989), (232, 124820), (290, 99856), (316, 91640), (395, 73312), (464, 62410), (580, 49928), (632, 45820), (790, 36656), (928, 31205), (1160, 24964), (1264, 22910), (1580, 18328), (2291, 12640), (2320, 12482), (2528, 11455), (3160, 9164), (4582, 6320), (4640, 6241)]