80521140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191717}}^1$

素因数の和:191736

約数の個数: 48

約数和(自身を含む): 257668992

約数和(自身を除く): 177147852

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191717, 383434, 575151, 766868, 958585, 1150302, 1342019, 1917170, 2300604, 2684038, 2875755, 3834340, 4026057, 5368076, 5751510, 6710095, 8052114, 11503020, 13420190, 16104228, 20130285, 26840380, 40260570, 80521140]

約数ペア:

[(1, 80521140), (2, 40260570), (3, 26840380), (4, 20130285), (5, 16104228), (6, 13420190), (7, 11503020), (10, 8052114), (12, 6710095), (14, 5751510), (15, 5368076), (20, 4026057), (21, 3834340), (28, 2875755), (30, 2684038), (35, 2300604), (42, 1917170), (60, 1342019), (70, 1150302), (84, 958585), (105, 766868), (140, 575151), (210, 383434), (420, 191717)]