280806425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{1249}}^1$

素因数の和:1322

約数の個数: 36

約数和(自身を含む): 385717500

約数和(自身を除く): 104911075

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 529, 575, 1249, 1955, 2645, 6245, 8993, 9775, 13225, 21233, 28727, 31225, 44965, 106165, 143635, 224825, 488359, 530825, 660721, 718175, 2441795, 3303605, 11232257, 12208975, 16518025, 56161285, 280806425]

約数ペア:

[(1, 280806425), (5, 56161285), (17, 16518025), (23, 12208975), (25, 11232257), (85, 3303605), (115, 2441795), (391, 718175), (425, 660721), (529, 530825), (575, 488359), (1249, 224825), (1955, 143635), (2645, 106165), (6245, 44965), (8993, 31225), (9775, 28727), (13225, 21233)]