28259080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^3\times {\mathrm{103}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 67766400

約数和(自身を除く): 39507320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 361, 380, 412, 515, 722, 760, 824, 1030, 1444, 1805, 1957, 2060, 2888, 3610, 3914, 4120, 6859, 7220, 7828, 9785, 13718, 14440, 15656, 19570, 27436, 34295, 37183, 39140, 54872, 68590, 74366, 78280, 137180, 148732, 185915, 274360, 297464, 371830, 706477, 743660, 1412954, 1487320, 2825908, 3532385, 5651816, 7064770, 14129540, 28259080]

約数ペア:

[(1, 28259080), (2, 14129540), (4, 7064770), (5, 5651816), (8, 3532385), (10, 2825908), (19, 1487320), (20, 1412954), (38, 743660), (40, 706477), (76, 371830), (95, 297464), (103, 274360), (152, 185915), (190, 148732), (206, 137180), (361, 78280), (380, 74366), (412, 68590), (515, 54872), (722, 39140), (760, 37183), (824, 34295), (1030, 27436), (1444, 19570), (1805, 15656), (1957, 14440), (2060, 13718), (2888, 9785), (3610, 7828), (3914, 7220), (4120, 6859)]