20159672020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{977}}^1\times {\mathrm{60689}}^1$

素因数の和:61692

約数の個数: 48

約数和(自身を含む): 44872243920

約数和(自身を除く): 24712571900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 977, 1954, 3908, 4885, 9770, 16609, 19540, 33218, 60689, 66436, 83045, 121378, 166090, 242756, 303445, 332180, 606890, 1031713, 1213780, 2063426, 4126852, 5158565, 10317130, 20634260, 59293153, 118586306, 237172612, 296465765, 592931530, 1007983601, 1185863060, 2015967202, 4031934404, 5039918005, 10079836010, 20159672020]

約数ペア:

[(1, 20159672020), (2, 10079836010), (4, 5039918005), (5, 4031934404), (10, 2015967202), (17, 1185863060), (20, 1007983601), (34, 592931530), (68, 296465765), (85, 237172612), (170, 118586306), (340, 59293153), (977, 20634260), (1954, 10317130), (3908, 5158565), (4885, 4126852), (9770, 2063426), (16609, 1213780), (19540, 1031713), (33218, 606890), (60689, 332180), (66436, 303445), (83045, 242756), (121378, 166090)]