398490625

素因数分解:

$5^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{577}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 568932336

約数和(自身を除く): 170441711

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 325, 425, 577, 625, 1105, 1625, 2125, 2885, 3125, 5525, 7501, 8125, 9809, 10625, 14425, 27625, 37505, 40625, 49045, 53125, 72125, 127517, 138125, 187525, 245225, 360625, 637585, 690625, 937625, 1226125, 1803125, 3187925, 4688125, 6130625, 15939625, 23440625, 30653125, 79698125, 398490625]

約数ペア:

[(1, 398490625), (5, 79698125), (13, 30653125), (17, 23440625), (25, 15939625), (65, 6130625), (85, 4688125), (125, 3187925), (221, 1803125), (325, 1226125), (425, 937625), (577, 690625), (625, 637585), (1105, 360625), (1625, 245225), (2125, 187525), (2885, 138125), (3125, 127517), (5525, 72125), (7501, 53125), (8125, 49045), (9809, 40625), (10625, 37505), (14425, 27625)]