20072720

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3023}}^1$

素因数の和:3119

約数の個数: 40

約数和(自身を含む): 47246976

約数和(自身を除く): 27174256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3023, 3320, 6046, 6640, 12092, 15115, 24184, 30230, 48368, 60460, 120920, 241840, 250909, 501818, 1003636, 1254545, 2007272, 2509090, 4014544, 5018180, 10036360, 20072720]

約数ペア:

[(1, 20072720), (2, 10036360), (4, 5018180), (5, 4014544), (8, 2509090), (10, 2007272), (16, 1254545), (20, 1003636), (40, 501818), (80, 250909), (83, 241840), (166, 120920), (332, 60460), (415, 48368), (664, 30230), (830, 24184), (1328, 15115), (1660, 12092), (3023, 6640), (3320, 6046)]