20119575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2017}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 40037120

約数和(自身を除く): 19917545

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 2017, 3325, 6051, 9975, 10085, 14119, 30255, 38323, 42357, 50425, 70595, 114969, 151275, 191615, 211785, 268261, 352975, 574845, 804783, 958075, 1058925, 1341305, 2874225, 4023915, 6706525, 20119575]

約数ペア:

[(1, 20119575), (3, 6706525), (5, 4023915), (7, 2874225), (15, 1341305), (19, 1058925), (21, 958075), (25, 804783), (35, 574845), (57, 352975), (75, 268261), (95, 211785), (105, 191615), (133, 151275), (175, 114969), (285, 70595), (399, 50425), (475, 42357), (525, 38323), (665, 30255), (1425, 14119), (1995, 10085), (2017, 9975), (3325, 6051)]