80781645

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{2243}}^1$

素因数の和:2279

約数の個数: 40

約数和(自身を含む): 150850656

約数和(自身を除く): 70069011

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 2243, 2401, 5145, 6729, 7203, 11215, 12005, 15701, 33645, 36015, 47103, 78505, 109907, 235515, 329721, 549535, 769349, 1648605, 2308047, 3846745, 5385443, 11540235, 16156329, 26927215, 80781645]

約数ペア:

[(1, 80781645), (3, 26927215), (5, 16156329), (7, 11540235), (15, 5385443), (21, 3846745), (35, 2308047), (49, 1648605), (105, 769349), (147, 549535), (245, 329721), (343, 235515), (735, 109907), (1029, 78505), (1715, 47103), (2243, 36015), (2401, 33645), (5145, 15701), (6729, 12005), (7203, 11215)]