20194178420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{206021}}^1$

素因数の和:206085

約数の個数: 72

約数和(自身を含む): 47504552760

約数和(自身を除く): 27310374340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 260, 290, 338, 377, 580, 676, 754, 845, 1508, 1690, 1885, 3380, 3770, 4901, 7540, 9802, 19604, 24505, 49010, 98020, 206021, 412042, 824084, 1030105, 2060210, 2678273, 4120420, 5356546, 5974609, 10713092, 11949218, 13391365, 23898436, 26782730, 29873045, 34817549, 53565460, 59746090, 69635098, 77669917, 119492180, 139270196, 155339834, 174087745, 310679668, 348175490, 388349585, 696350980, 776699170, 1009708921, 1553398340, 2019417842, 4038835684, 5048544605, 10097089210, 20194178420]

約数ペア:

[(1, 20194178420), (2, 10097089210), (4, 5048544605), (5, 4038835684), (10, 2019417842), (13, 1553398340), (20, 1009708921), (26, 776699170), (29, 696350980), (52, 388349585), (58, 348175490), (65, 310679668), (116, 174087745), (130, 155339834), (145, 139270196), (169, 119492180), (260, 77669917), (290, 69635098), (338, 59746090), (377, 53565460), (580, 34817549), (676, 29873045), (754, 26782730), (845, 23898436), (1508, 13391365), (1690, 11949218), (1885, 10713092), (3380, 5974609), (3770, 5356546), (4901, 4120420), (7540, 2678273), (9802, 2060210), (19604, 1030105), (24505, 824084), (49010, 412042), (98020, 206021)]