1644260020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{170921}}^1$

素因数の和:170980

約数の個数: 48

約数和(自身を含む): 3819081168

約数和(自身を除く): 2174821148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 9620, 170921, 341842, 683684, 854605, 1709210, 2221973, 3418420, 4443946, 6324077, 8887892, 11109865, 12648154, 22219730, 25296308, 31620385, 44439460, 63240770, 82213001, 126481540, 164426002, 328852004, 411065005, 822130010, 1644260020]

約数ペア:

[(1, 1644260020), (2, 822130010), (4, 411065005), (5, 328852004), (10, 164426002), (13, 126481540), (20, 82213001), (26, 63240770), (37, 44439460), (52, 31620385), (65, 25296308), (74, 22219730), (130, 12648154), (148, 11109865), (185, 8887892), (260, 6324077), (370, 4443946), (481, 3418420), (740, 2221973), (962, 1709210), (1924, 854605), (2405, 683684), (4810, 341842), (9620, 170921)]