20170575

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{571}}^1$

素因数の和:744

約数の個数: 36

約数和(自身を含む): 36421528

約数和(自身を除く): 16250953

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 571, 785, 1413, 1713, 2355, 2855, 3925, 5139, 7065, 8565, 11775, 14275, 25695, 35325, 42825, 89647, 128475, 268941, 448235, 806823, 1344705, 2241175, 4034115, 6723525, 20170575]

約数ペア:

[(1, 20170575), (3, 6723525), (5, 4034115), (9, 2241175), (15, 1344705), (25, 806823), (45, 448235), (75, 268941), (157, 128475), (225, 89647), (471, 42825), (571, 35325), (785, 25695), (1413, 14275), (1713, 11775), (2355, 8565), (2855, 7065), (3925, 5139)]