28843580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 62203680

約数和(自身を除く): 33360100

約数列:

[1, 2, 4, 5, 10, 20, 101, 109, 131, 202, 218, 262, 404, 436, 505, 524, 545, 655, 1010, 1090, 1310, 2020, 2180, 2620, 11009, 13231, 14279, 22018, 26462, 28558, 44036, 52924, 55045, 57116, 66155, 71395, 110090, 132310, 142790, 220180, 264620, 285580, 1442179, 2884358, 5768716, 7210895, 14421790, 28843580]

約数ペア:

[(1, 28843580), (2, 14421790), (4, 7210895), (5, 5768716), (10, 2884358), (20, 1442179), (101, 285580), (109, 264620), (131, 220180), (202, 142790), (218, 132310), (262, 110090), (404, 71395), (436, 66155), (505, 57116), (524, 55045), (545, 52924), (655, 44036), (1010, 28558), (1090, 26462), (1310, 22018), (2020, 14279), (2180, 13231), (2620, 11009)]