20790240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43313}}^1$

素因数の和:43331

約数の個数: 48

約数和(自身を含む): 65490768

約数和(自身を除く): 44700528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43313, 86626, 129939, 173252, 216565, 259878, 346504, 433130, 519756, 649695, 693008, 866260, 1039512, 1299390, 1386016, 1732520, 2079024, 2598780, 3465040, 4158048, 5197560, 6930080, 10395120, 20790240]

約数ペア:

[(1, 20790240), (2, 10395120), (3, 6930080), (4, 5197560), (5, 4158048), (6, 3465040), (8, 2598780), (10, 2079024), (12, 1732520), (15, 1386016), (16, 1299390), (20, 1039512), (24, 866260), (30, 693008), (32, 649695), (40, 519756), (48, 433130), (60, 346504), (80, 259878), (96, 216565), (120, 173252), (160, 129939), (240, 86626), (480, 43313)]