28735120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5059}}^1$

素因数の和:5143

約数の個数: 40

約数和(自身を含む): 67763520

約数和(自身を除く): 39028400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5059, 5680, 10118, 20236, 25295, 40472, 50590, 80944, 101180, 202360, 359189, 404720, 718378, 1436756, 1795945, 2873512, 3591890, 5747024, 7183780, 14367560, 28735120]

約数ペア:

[(1, 28735120), (2, 14367560), (4, 7183780), (5, 5747024), (8, 3591890), (10, 2873512), (16, 1795945), (20, 1436756), (40, 718378), (71, 404720), (80, 359189), (142, 202360), (284, 101180), (355, 80944), (568, 50590), (710, 40472), (1136, 25295), (1420, 20236), (2840, 10118), (5059, 5680)]