28982440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5531}}^1$

素因数の和:5673

約数の個数: 32

約数和(自身を含む): 65720160

約数和(自身を除く): 36737720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5531, 11062, 22124, 27655, 44248, 55310, 110620, 221240, 724561, 1449122, 2898244, 3622805, 5796488, 7245610, 14491220, 28982440]

約数ペア:

[(1, 28982440), (2, 14491220), (4, 7245610), (5, 5796488), (8, 3622805), (10, 2898244), (20, 1449122), (40, 724561), (131, 221240), (262, 110620), (524, 55310), (655, 44248), (1048, 27655), (1310, 22124), (2620, 11062), (5240, 5531)]