18508960

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3989}}^1$

素因数の和:4033

約数の個数: 48

約数和(自身を含む): 45246600

約数和(自身を除く): 26737640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 3989, 4640, 7978, 15956, 19945, 31912, 39890, 63824, 79780, 115681, 127648, 159560, 231362, 319120, 462724, 578405, 638240, 925448, 1156810, 1850896, 2313620, 3701792, 4627240, 9254480, 18508960]

約数ペア:

[(1, 18508960), (2, 9254480), (4, 4627240), (5, 3701792), (8, 2313620), (10, 1850896), (16, 1156810), (20, 925448), (29, 638240), (32, 578405), (40, 462724), (58, 319120), (80, 231362), (116, 159560), (145, 127648), (160, 115681), (232, 79780), (290, 63824), (464, 39890), (580, 31912), (928, 19945), (1160, 15956), (2320, 7978), (3989, 4640)]