631540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 1636992

約数和(自身を除く): 1005452

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 347, 364, 455, 694, 910, 1388, 1735, 1820, 2429, 3470, 4511, 4858, 6940, 9022, 9716, 12145, 18044, 22555, 24290, 31577, 45110, 48580, 63154, 90220, 126308, 157885, 315770, 631540]

約数ペア:

[(1, 631540), (2, 315770), (4, 157885), (5, 126308), (7, 90220), (10, 63154), (13, 48580), (14, 45110), (20, 31577), (26, 24290), (28, 22555), (35, 18044), (52, 12145), (65, 9716), (70, 9022), (91, 6940), (130, 4858), (140, 4511), (182, 3470), (260, 2429), (347, 1820), (364, 1735), (455, 1388), (694, 910)]