128728080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:858

約数の個数: 240

約数和(自身を含む): 493562160

約数和(自身を除く): 364834080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 102, 104, 117, 120, 130, 136, 144, 153, 156, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 306, 312, 340, 360, 390, 408, 442, 468, 510, 520, 585, 612, 624, 663, 680, 720, 765, 780, 809, 816, 884, 936, 1020, 1040, 1105, 1170, 1224, 1326, 1360, 1530, 1560, 1618, 1768, 1872, 1989, 2040, 2210, 2340, 2427, 2448, 2652, 3060, 3120, 3236, 3315, 3536, 3978, 4045, 4080, 4420, 4680, 4854, 5304, 6120, 6472, 6630, 7281, 7956, 8090, 8840, 9360, 9708, 9945, 10517, 10608, 12135, 12240, 12944, 13260, 13753, 14562, 15912, 16180, 17680, 19416, 19890, 21034, 24270, 26520, 27506, 29124, 31551, 31824, 32360, 36405, 38832, 39780, 41259, 42068, 48540, 52585, 53040, 55012, 58248, 63102, 64720, 68765, 72810, 79560, 82518, 84136, 94653, 97080, 105170, 110024, 116496, 123777, 126204, 137530, 145620, 157755, 159120, 165036, 168272, 178789, 189306, 194160, 206295, 210340, 220048, 247554, 252408, 275060, 291240, 315510, 330072, 357578, 378612, 412590, 420680, 473265, 495108, 504816, 536367, 550120, 582480, 618885, 631020, 660144, 715156, 757224, 825180, 841360, 893945, 946530, 990216, 1072734, 1100240, 1237770, 1262040, 1430312, 1514448, 1609101, 1650360, 1787890, 1893060, 1980432, 2145468, 2475540, 2524080, 2681835, 2860624, 3218202, 3300720, 3575780, 3786120, 4290936, 4951080, 5363670, 6436404, 7151560, 7572240, 8045505, 8581872, 9902160, 10727340, 12872808, 14303120, 16091010, 21454680, 25745616, 32182020, 42909360, 64364040, 128728080]

約数ペア:

[(1, 128728080), (2, 64364040), (3, 42909360), (4, 32182020), (5, 25745616), (6, 21454680), (8, 16091010), (9, 14303120), (10, 12872808), (12, 10727340), (13, 9902160), (15, 8581872), (16, 8045505), (17, 7572240), (18, 7151560), (20, 6436404), (24, 5363670), (26, 4951080), (30, 4290936), (34, 3786120), (36, 3575780), (39, 3300720), (40, 3218202), (45, 2860624), (48, 2681835), (51, 2524080), (52, 2475540), (60, 2145468), (65, 1980432), (68, 1893060), (72, 1787890), (78, 1650360), (80, 1609101), (85, 1514448), (90, 1430312), (102, 1262040), (104, 1237770), (117, 1100240), (120, 1072734), (130, 990216), (136, 946530), (144, 893945), (153, 841360), (156, 825180), (170, 757224), (180, 715156), (195, 660144), (204, 631020), (208, 618885), (221, 582480), (234, 550120), (240, 536367), (255, 504816), (260, 495108), (272, 473265), (306, 420680), (312, 412590), (340, 378612), (360, 357578), (390, 330072), (408, 315510), (442, 291240), (468, 275060), (510, 252408), (520, 247554), (585, 220048), (612, 210340), (624, 206295), (663, 194160), (680, 189306), (720, 178789), (765, 168272), (780, 165036), (809, 159120), (816, 157755), (884, 145620), (936, 137530), (1020, 126204), (1040, 123777), (1105, 116496), (1170, 110024), (1224, 105170), (1326, 97080), (1360, 94653), (1530, 84136), (1560, 82518), (1618, 79560), (1768, 72810), (1872, 68765), (1989, 64720), (2040, 63102), (2210, 58248), (2340, 55012), (2427, 53040), (2448, 52585), (2652, 48540), (3060, 42068), (3120, 41259), (3236, 39780), (3315, 38832), (3536, 36405), (3978, 32360), (4045, 31824), (4080, 31551), (4420, 29124), (4680, 27506), (4854, 26520), (5304, 24270), (6120, 21034), (6472, 19890), (6630, 19416), (7281, 17680), (7956, 16180), (8090, 15912), (8840, 14562), (9360, 13753), (9708, 13260), (9945, 12944), (10517, 12240), (10608, 12135)]