20899170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3181}}^1$

素因数の和:3267

約数の個数: 48

約数和(自身を含む): 55099512

約数和(自身を除く): 34200342

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 146, 219, 365, 438, 657, 730, 1095, 1314, 2190, 3181, 3285, 6362, 6570, 9543, 15905, 19086, 28629, 31810, 47715, 57258, 95430, 143145, 232213, 286290, 464426, 696639, 1161065, 1393278, 2089917, 2322130, 3483195, 4179834, 6966390, 10449585, 20899170]

約数ペア:

[(1, 20899170), (2, 10449585), (3, 6966390), (5, 4179834), (6, 3483195), (9, 2322130), (10, 2089917), (15, 1393278), (18, 1161065), (30, 696639), (45, 464426), (73, 286290), (90, 232213), (146, 143145), (219, 95430), (365, 57258), (438, 47715), (657, 31810), (730, 28629), (1095, 19086), (1314, 15905), (2190, 9543), (3181, 6570), (3285, 6362)]