28945985220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{393181}}^1$

素因数の和:393605

約数の個数: 72

約数和(自身を含む): 88017722520

約数和(自身を除く): 59071737300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 409, 818, 1227, 1636, 2045, 2454, 3681, 4090, 4908, 6135, 7362, 8180, 12270, 14724, 18405, 24540, 36810, 73620, 393181, 786362, 1179543, 1572724, 1965905, 2359086, 3538629, 3931810, 4718172, 5897715, 7077258, 7863620, 11795430, 14154516, 17693145, 23590860, 35386290, 70772580, 160811029, 321622058, 482433087, 643244116, 804055145, 964866174, 1447299261, 1608110290, 1929732348, 2412165435, 2894598522, 3216220580, 4824330870, 5789197044, 7236496305, 9648661740, 14472992610, 28945985220]

約数ペア:

[(1, 28945985220), (2, 14472992610), (3, 9648661740), (4, 7236496305), (5, 5789197044), (6, 4824330870), (9, 3216220580), (10, 2894598522), (12, 2412165435), (15, 1929732348), (18, 1608110290), (20, 1447299261), (30, 964866174), (36, 804055145), (45, 643244116), (60, 482433087), (90, 321622058), (180, 160811029), (409, 70772580), (818, 35386290), (1227, 23590860), (1636, 17693145), (2045, 14154516), (2454, 11795430), (3681, 7863620), (4090, 7077258), (4908, 5897715), (6135, 4718172), (7362, 3931810), (8180, 3538629), (12270, 2359086), (14724, 1965905), (18405, 1572724), (24540, 1179543), (36810, 786362), (73620, 393181)]