31965525

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 62065224

約数和(自身を除く): 30099699

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 61, 75, 85, 137, 153, 183, 225, 255, 305, 411, 425, 549, 685, 765, 915, 1037, 1233, 1275, 1525, 2055, 2329, 2745, 3111, 3425, 3825, 4575, 5185, 6165, 6987, 8357, 9333, 10275, 11645, 13725, 15555, 20961, 25071, 25925, 30825, 34935, 41785, 46665, 58225, 75213, 77775, 104805, 125355, 142069, 174675, 208925, 233325, 376065, 426207, 524025, 626775, 710345, 1278621, 1880325, 2131035, 3551725, 6393105, 10655175, 31965525]

約数ペア:

[(1, 31965525), (3, 10655175), (5, 6393105), (9, 3551725), (15, 2131035), (17, 1880325), (25, 1278621), (45, 710345), (51, 626775), (61, 524025), (75, 426207), (85, 376065), (137, 233325), (153, 208925), (183, 174675), (225, 142069), (255, 125355), (305, 104805), (411, 77775), (425, 75213), (549, 58225), (685, 46665), (765, 41785), (915, 34935), (1037, 30825), (1233, 25925), (1275, 25071), (1525, 20961), (2055, 15555), (2329, 13725), (2745, 11645), (3111, 10275), (3425, 9333), (3825, 8357), (4575, 6987), (5185, 6165)]