19828020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17393}}^1$

素因数の和:17424

約数の個数: 48

約数和(自身を含む): 58443840

約数和(自身を除く): 38615820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17393, 34786, 52179, 69572, 86965, 104358, 173930, 208716, 260895, 330467, 347860, 521790, 660934, 991401, 1043580, 1321868, 1652335, 1982802, 3304670, 3965604, 4957005, 6609340, 9914010, 19828020]

約数ペア:

[(1, 19828020), (2, 9914010), (3, 6609340), (4, 4957005), (5, 3965604), (6, 3304670), (10, 1982802), (12, 1652335), (15, 1321868), (19, 1043580), (20, 991401), (30, 660934), (38, 521790), (57, 347860), (60, 330467), (76, 260895), (95, 208716), (114, 173930), (190, 104358), (228, 86965), (285, 69572), (380, 52179), (570, 34786), (1140, 17393)]