1977525

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:91

約数の個数: 72

約数和(自身を含む): 4178304

約数和(自身を除く): 2200779

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 47, 51, 55, 75, 85, 99, 141, 153, 165, 187, 225, 235, 255, 275, 423, 425, 495, 517, 561, 705, 765, 799, 825, 935, 1175, 1275, 1551, 1683, 2115, 2397, 2475, 2585, 2805, 3525, 3825, 3995, 4653, 4675, 7191, 7755, 8415, 8789, 10575, 11985, 12925, 14025, 19975, 23265, 26367, 35955, 38775, 42075, 43945, 59925, 79101, 116325, 131835, 179775, 219725, 395505, 659175, 1977525]

約数ペア:

[(1, 1977525), (3, 659175), (5, 395505), (9, 219725), (11, 179775), (15, 131835), (17, 116325), (25, 79101), (33, 59925), (45, 43945), (47, 42075), (51, 38775), (55, 35955), (75, 26367), (85, 23265), (99, 19975), (141, 14025), (153, 12925), (165, 11985), (187, 10575), (225, 8789), (235, 8415), (255, 7755), (275, 7191), (423, 4675), (425, 4653), (495, 3995), (517, 3825), (561, 3525), (705, 2805), (765, 2585), (799, 2475), (825, 2397), (935, 2115), (1175, 1683), (1275, 1551)]