4050020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 9429168

約数和(自身を除く): 5379148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 421, 481, 740, 842, 962, 1684, 1924, 2105, 2405, 4210, 4810, 5473, 8420, 9620, 10946, 15577, 21892, 27365, 31154, 54730, 62308, 77885, 109460, 155770, 202501, 311540, 405002, 810004, 1012505, 2025010, 4050020]

約数ペア:

[(1, 4050020), (2, 2025010), (4, 1012505), (5, 810004), (10, 405002), (13, 311540), (20, 202501), (26, 155770), (37, 109460), (52, 77885), (65, 62308), (74, 54730), (130, 31154), (148, 27365), (185, 21892), (260, 15577), (370, 10946), (421, 9620), (481, 8420), (740, 5473), (842, 4810), (962, 4210), (1684, 2405), (1924, 2105)]