28750280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4253}}^1$

素因数の和:4290

約数の個数: 48

約数和(自身を含む): 70063380

約数和(自身を除く): 41313100

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 4253, 6760, 8506, 17012, 21265, 34024, 42530, 55289, 85060, 110578, 170120, 221156, 276445, 442312, 552890, 718757, 1105780, 1437514, 2211560, 2875028, 3593785, 5750056, 7187570, 14375140, 28750280]

約数ペア:

[(1, 28750280), (2, 14375140), (4, 7187570), (5, 5750056), (8, 3593785), (10, 2875028), (13, 2211560), (20, 1437514), (26, 1105780), (40, 718757), (52, 552890), (65, 442312), (104, 276445), (130, 221156), (169, 170120), (260, 110578), (338, 85060), (520, 55289), (676, 42530), (845, 34024), (1352, 21265), (1690, 17012), (3380, 8506), (4253, 6760)]