72942280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 170553600

約数和(自身を除く): 97611320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 158, 164, 205, 316, 328, 395, 410, 563, 632, 790, 820, 1126, 1580, 1640, 2252, 2815, 3160, 3239, 4504, 5630, 6478, 11260, 12956, 16195, 22520, 23083, 25912, 32390, 44477, 46166, 64780, 88954, 92332, 115415, 129560, 177908, 184664, 222385, 230830, 355816, 444770, 461660, 889540, 923320, 1779080, 1823557, 3647114, 7294228, 9117785, 14588456, 18235570, 36471140, 72942280]

約数ペア:

[(1, 72942280), (2, 36471140), (4, 18235570), (5, 14588456), (8, 9117785), (10, 7294228), (20, 3647114), (40, 1823557), (41, 1779080), (79, 923320), (82, 889540), (158, 461660), (164, 444770), (205, 355816), (316, 230830), (328, 222385), (395, 184664), (410, 177908), (563, 129560), (632, 115415), (790, 92332), (820, 88954), (1126, 64780), (1580, 46166), (1640, 44477), (2252, 32390), (2815, 25912), (3160, 23083), (3239, 22520), (4504, 16195), (5630, 12956), (6478, 11260)]