261908520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{5209}}^1$

素因数の和:5642

約数の個数: 64

約数和(自身を含む): 787752000

約数和(自身を除く): 525843480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 419, 838, 1257, 1676, 2095, 2514, 3352, 4190, 5028, 5209, 6285, 8380, 10056, 10418, 12570, 15627, 16760, 20836, 25140, 26045, 31254, 41672, 50280, 52090, 62508, 78135, 104180, 125016, 156270, 208360, 312540, 625080, 2182571, 4365142, 6547713, 8730284, 10912855, 13095426, 17460568, 21825710, 26190852, 32738565, 43651420, 52381704, 65477130, 87302840, 130954260, 261908520]

約数ペア:

[(1, 261908520), (2, 130954260), (3, 87302840), (4, 65477130), (5, 52381704), (6, 43651420), (8, 32738565), (10, 26190852), (12, 21825710), (15, 17460568), (20, 13095426), (24, 10912855), (30, 8730284), (40, 6547713), (60, 4365142), (120, 2182571), (419, 625080), (838, 312540), (1257, 208360), (1676, 156270), (2095, 125016), (2514, 104180), (3352, 78135), (4190, 62508), (5028, 52090), (5209, 50280), (6285, 41672), (8380, 31254), (10056, 26045), (10418, 25140), (12570, 20836), (15627, 16760)]