7420725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 14894880

約数和(自身を除く): 7474155

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 43, 45, 59, 65, 75, 117, 129, 177, 195, 215, 225, 295, 325, 387, 531, 559, 585, 645, 767, 885, 975, 1075, 1475, 1677, 1935, 2301, 2537, 2655, 2795, 2925, 3225, 3835, 4425, 5031, 6903, 7611, 8385, 9675, 11505, 12685, 13275, 13975, 19175, 22833, 25155, 32981, 34515, 38055, 41925, 57525, 63425, 98943, 114165, 125775, 164905, 172575, 190275, 296829, 494715, 570825, 824525, 1484145, 2473575, 7420725]

約数ペア:

[(1, 7420725), (3, 2473575), (5, 1484145), (9, 824525), (13, 570825), (15, 494715), (25, 296829), (39, 190275), (43, 172575), (45, 164905), (59, 125775), (65, 114165), (75, 98943), (117, 63425), (129, 57525), (177, 41925), (195, 38055), (215, 34515), (225, 32981), (295, 25155), (325, 22833), (387, 19175), (531, 13975), (559, 13275), (585, 12685), (645, 11505), (767, 9675), (885, 8385), (975, 7611), (1075, 6903), (1475, 5031), (1677, 4425), (1935, 3835), (2301, 3225), (2537, 2925), (2655, 2795)]