28658840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5387}}^1$

素因数の和:5424

約数の個数: 64

約数和(自身を含む): 77587200

約数和(自身を除く): 48928360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 5387, 10774, 21548, 26935, 37709, 43096, 53870, 75418, 102353, 107740, 150836, 188545, 204706, 215480, 301672, 377090, 409412, 511765, 716471, 754180, 818824, 1023530, 1432942, 1508360, 2047060, 2865884, 3582355, 4094120, 5731768, 7164710, 14329420, 28658840]

約数ペア:

[(1, 28658840), (2, 14329420), (4, 7164710), (5, 5731768), (7, 4094120), (8, 3582355), (10, 2865884), (14, 2047060), (19, 1508360), (20, 1432942), (28, 1023530), (35, 818824), (38, 754180), (40, 716471), (56, 511765), (70, 409412), (76, 377090), (95, 301672), (133, 215480), (140, 204706), (152, 188545), (190, 150836), (266, 107740), (280, 102353), (380, 75418), (532, 53870), (665, 43096), (760, 37709), (1064, 26935), (1330, 21548), (2660, 10774), (5320, 5387)]