31280782

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 56320992

約数和(自身を除く): 25040210

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 181, 221, 289, 299, 362, 391, 442, 578, 598, 782, 2353, 3077, 3757, 4163, 4706, 5083, 6154, 6647, 7514, 8326, 10166, 13294, 40001, 52309, 54119, 70771, 80002, 86411, 104618, 108238, 141542, 172822, 680017, 920023, 1203107, 1360034, 1840046, 2406214, 15640391, 31280782]

約数ペア:

[(1, 31280782), (2, 15640391), (13, 2406214), (17, 1840046), (23, 1360034), (26, 1203107), (34, 920023), (46, 680017), (181, 172822), (221, 141542), (289, 108238), (299, 104618), (362, 86411), (391, 80002), (442, 70771), (578, 54119), (598, 52309), (782, 40001), (2353, 13294), (3077, 10166), (3757, 8326), (4163, 7514), (4706, 6647), (5083, 6154)]