27991340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:762

約数の個数: 48

約数和(自身を含む): 63739200

約数和(自身を除く): 35747860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 541, 796, 995, 1082, 1990, 2164, 2587, 2705, 3980, 5174, 5410, 7033, 10348, 10820, 12935, 14066, 25870, 28132, 35165, 51740, 70330, 107659, 140660, 215318, 430636, 538295, 1076590, 1399567, 2153180, 2799134, 5598268, 6997835, 13995670, 27991340]

約数ペア:

[(1, 27991340), (2, 13995670), (4, 6997835), (5, 5598268), (10, 2799134), (13, 2153180), (20, 1399567), (26, 1076590), (52, 538295), (65, 430636), (130, 215318), (199, 140660), (260, 107659), (398, 70330), (541, 51740), (796, 35165), (995, 28132), (1082, 25870), (1990, 14066), (2164, 12935), (2587, 10820), (2705, 10348), (3980, 7033), (5174, 5410)]