18489440

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1583}}^1$

素因数の和:1671

約数の個数: 48

約数和(自身を含む): 44307648

約数和(自身を除く): 25818208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 146, 160, 292, 365, 584, 730, 1168, 1460, 1583, 2336, 2920, 3166, 5840, 6332, 7915, 11680, 12664, 15830, 25328, 31660, 50656, 63320, 115559, 126640, 231118, 253280, 462236, 577795, 924472, 1155590, 1848944, 2311180, 3697888, 4622360, 9244720, 18489440]

約数ペア:

[(1, 18489440), (2, 9244720), (4, 4622360), (5, 3697888), (8, 2311180), (10, 1848944), (16, 1155590), (20, 924472), (32, 577795), (40, 462236), (73, 253280), (80, 231118), (146, 126640), (160, 115559), (292, 63320), (365, 50656), (584, 31660), (730, 25328), (1168, 15830), (1460, 12664), (1583, 11680), (2336, 7915), (2920, 6332), (3166, 5840)]