18735850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 40176000

約数和(自身を除く): 21440150

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 199, 269, 350, 398, 538, 995, 1345, 1393, 1883, 1990, 2690, 2786, 3766, 4975, 6725, 6965, 9415, 9950, 13450, 13930, 18830, 34825, 47075, 53531, 69650, 94150, 107062, 267655, 374717, 535310, 749434, 1338275, 1873585, 2676550, 3747170, 9367925, 18735850]

約数ペア:

[(1, 18735850), (2, 9367925), (5, 3747170), (7, 2676550), (10, 1873585), (14, 1338275), (25, 749434), (35, 535310), (50, 374717), (70, 267655), (175, 107062), (199, 94150), (269, 69650), (350, 53531), (398, 47075), (538, 34825), (995, 18830), (1345, 13930), (1393, 13450), (1883, 9950), (1990, 9415), (2690, 6965), (2786, 6725), (3766, 4975)]