128335725

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:356

約数の個数: 96

約数和(自身を含む): 272720640

約数和(自身を除く): 144384915

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 157, 173, 175, 189, 225, 315, 471, 519, 525, 675, 785, 865, 945, 1099, 1211, 1413, 1557, 1575, 2355, 2595, 3297, 3633, 3925, 4239, 4325, 4671, 4725, 5495, 6055, 7065, 7785, 9891, 10899, 11775, 12975, 16485, 18165, 21195, 23355, 27161, 27475, 29673, 30275, 32697, 35325, 38925, 49455, 54495, 81483, 82425, 90825, 105975, 116775, 135805, 148365, 163485, 190127, 244449, 247275, 272475, 407415, 570381, 679025, 733347, 741825, 817425, 950635, 1222245, 1711143, 2037075, 2851905, 3666735, 4753175, 5133429, 6111225, 8555715, 14259525, 18333675, 25667145, 42778575, 128335725]

約数ペア:

[(1, 128335725), (3, 42778575), (5, 25667145), (7, 18333675), (9, 14259525), (15, 8555715), (21, 6111225), (25, 5133429), (27, 4753175), (35, 3666735), (45, 2851905), (63, 2037075), (75, 1711143), (105, 1222245), (135, 950635), (157, 817425), (173, 741825), (175, 733347), (189, 679025), (225, 570381), (315, 407415), (471, 272475), (519, 247275), (525, 244449), (675, 190127), (785, 163485), (865, 148365), (945, 135805), (1099, 116775), (1211, 105975), (1413, 90825), (1557, 82425), (1575, 81483), (2355, 54495), (2595, 49455), (3297, 38925), (3633, 35325), (3925, 32697), (4239, 30275), (4325, 29673), (4671, 27475), (4725, 27161), (5495, 23355), (6055, 21195), (7065, 18165), (7785, 16485), (9891, 12975), (10899, 11775)]