257641540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{24169}}^1$

素因数の和:24232

約数の個数: 48

約数和(自身を含む): 596902320

約数和(自身を除く): 339260780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 24169, 48338, 96676, 120845, 241690, 314197, 483380, 628394, 990929, 1256788, 1570985, 1981858, 3141970, 3963716, 4954645, 6283940, 9909290, 12882077, 19818580, 25764154, 51528308, 64410385, 128820770, 257641540]

約数ペア:

[(1, 257641540), (2, 128820770), (4, 64410385), (5, 51528308), (10, 25764154), (13, 19818580), (20, 12882077), (26, 9909290), (41, 6283940), (52, 4954645), (65, 3963716), (82, 3141970), (130, 1981858), (164, 1570985), (205, 1256788), (260, 990929), (410, 628394), (533, 483380), (820, 314197), (1066, 241690), (2132, 120845), (2665, 96676), (5330, 48338), (10660, 24169)]