8991180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 31449600

約数和(自身を除く): 22458420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 239, 285, 330, 342, 380, 396, 418, 478, 495, 570, 627, 660, 684, 717, 836, 855, 956, 990, 1045, 1140, 1195, 1254, 1434, 1710, 1881, 1980, 2090, 2151, 2390, 2508, 2629, 2868, 3135, 3420, 3585, 3762, 4180, 4302, 4541, 4780, 5258, 6270, 7170, 7524, 7887, 8604, 9082, 9405, 10516, 10755, 12540, 13145, 13623, 14340, 15774, 18164, 18810, 21510, 22705, 23661, 26290, 27246, 31548, 37620, 39435, 40869, 43020, 45410, 47322, 49951, 52580, 54492, 68115, 78870, 81738, 90820, 94644, 99902, 118305, 136230, 149853, 157740, 163476, 199804, 204345, 236610, 249755, 272460, 299706, 408690, 449559, 473220, 499510, 599412, 749265, 817380, 899118, 999020, 1498530, 1798236, 2247795, 2997060, 4495590, 8991180]

約数ペア:

[(1, 8991180), (2, 4495590), (3, 2997060), (4, 2247795), (5, 1798236), (6, 1498530), (9, 999020), (10, 899118), (11, 817380), (12, 749265), (15, 599412), (18, 499510), (19, 473220), (20, 449559), (22, 408690), (30, 299706), (33, 272460), (36, 249755), (38, 236610), (44, 204345), (45, 199804), (55, 163476), (57, 157740), (60, 149853), (66, 136230), (76, 118305), (90, 99902), (95, 94644), (99, 90820), (110, 81738), (114, 78870), (132, 68115), (165, 54492), (171, 52580), (180, 49951), (190, 47322), (198, 45410), (209, 43020), (220, 40869), (228, 39435), (239, 37620), (285, 31548), (330, 27246), (342, 26290), (380, 23661), (396, 22705), (418, 21510), (478, 18810), (495, 18164), (570, 15774), (627, 14340), (660, 13623), (684, 13145), (717, 12540), (836, 10755), (855, 10516), (956, 9405), (990, 9082), (1045, 8604), (1140, 7887), (1195, 7524), (1254, 7170), (1434, 6270), (1710, 5258), (1881, 4780), (1980, 4541), (2090, 4302), (2151, 4180), (2390, 3762), (2508, 3585), (2629, 3420), (2868, 3135)]