20398260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3119}}^1$

素因数の和:3240

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 37259340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3119, 3270, 6238, 6540, 9357, 12476, 15595, 18714, 31190, 37428, 46785, 62380, 93570, 187140, 339971, 679942, 1019913, 1359884, 1699855, 2039826, 3399710, 4079652, 5099565, 6799420, 10199130, 20398260]

約数ペア:

[(1, 20398260), (2, 10199130), (3, 6799420), (4, 5099565), (5, 4079652), (6, 3399710), (10, 2039826), (12, 1699855), (15, 1359884), (20, 1019913), (30, 679942), (60, 339971), (109, 187140), (218, 93570), (327, 62380), (436, 46785), (545, 37428), (654, 31190), (1090, 18714), (1308, 15595), (1635, 12476), (2180, 9357), (3119, 6540), (3270, 6238)]