19922720

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3037}}^1$

素因数の和:3093

約数の個数: 48

約数和(自身を含む): 48231288

約数和(自身を除く): 28308568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3037, 3280, 6074, 6560, 12148, 15185, 24296, 30370, 48592, 60740, 97184, 121480, 124517, 242960, 249034, 485920, 498068, 622585, 996136, 1245170, 1992272, 2490340, 3984544, 4980680, 9961360, 19922720]

約数ペア:

[(1, 19922720), (2, 9961360), (4, 4980680), (5, 3984544), (8, 2490340), (10, 1992272), (16, 1245170), (20, 996136), (32, 622585), (40, 498068), (41, 485920), (80, 249034), (82, 242960), (160, 124517), (164, 121480), (205, 97184), (328, 60740), (410, 48592), (656, 30370), (820, 24296), (1312, 15185), (1640, 12148), (3037, 6560), (3280, 6074)]