81500040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:253

約数の個数: 256

約数和(自身を含む): 301708800

約数和(自身を除く): 220208760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 23, 24, 27, 30, 34, 36, 40, 45, 46, 51, 54, 60, 68, 69, 72, 85, 90, 92, 102, 108, 115, 120, 135, 136, 138, 153, 170, 180, 184, 193, 204, 207, 216, 230, 255, 270, 276, 306, 340, 345, 360, 386, 391, 408, 414, 459, 460, 510, 540, 552, 579, 612, 621, 680, 690, 765, 772, 782, 828, 918, 920, 965, 1020, 1035, 1080, 1158, 1173, 1224, 1242, 1380, 1530, 1544, 1564, 1656, 1737, 1836, 1930, 1955, 2040, 2070, 2295, 2316, 2346, 2484, 2760, 2895, 3060, 3105, 3128, 3281, 3474, 3519, 3672, 3860, 3910, 4140, 4439, 4590, 4632, 4692, 4968, 5211, 5790, 5865, 6120, 6210, 6562, 6948, 7038, 7720, 7820, 8280, 8685, 8878, 9180, 9384, 9843, 10422, 10557, 11580, 11730, 12420, 13124, 13317, 13896, 14076, 15640, 16405, 17370, 17595, 17756, 18360, 19686, 20844, 21114, 22195, 23160, 23460, 24840, 26055, 26248, 26634, 28152, 29529, 32810, 34740, 35190, 35512, 39372, 39951, 41688, 42228, 44390, 46920, 49215, 52110, 52785, 53268, 59058, 65620, 66585, 69480, 70380, 75463, 78744, 79902, 84456, 88587, 88780, 98430, 104220, 105570, 106536, 118116, 119853, 131240, 133170, 140760, 147645, 150926, 159804, 177174, 177560, 196860, 199755, 208440, 211140, 226389, 236232, 239706, 266340, 295290, 301852, 319608, 354348, 377315, 393720, 399510, 422280, 442935, 452778, 479412, 532680, 590580, 599265, 603704, 679167, 708696, 754630, 799020, 885870, 905556, 958824, 1131945, 1181160, 1198530, 1358334, 1509260, 1598040, 1771740, 1811112, 2037501, 2263890, 2397060, 2716668, 3018520, 3395835, 3543480, 4075002, 4527780, 4794120, 5433336, 6791670, 8150004, 9055560, 10187505, 13583340, 16300008, 20375010, 27166680, 40750020, 81500040]

約数ペア:

[(1, 81500040), (2, 40750020), (3, 27166680), (4, 20375010), (5, 16300008), (6, 13583340), (8, 10187505), (9, 9055560), (10, 8150004), (12, 6791670), (15, 5433336), (17, 4794120), (18, 4527780), (20, 4075002), (23, 3543480), (24, 3395835), (27, 3018520), (30, 2716668), (34, 2397060), (36, 2263890), (40, 2037501), (45, 1811112), (46, 1771740), (51, 1598040), (54, 1509260), (60, 1358334), (68, 1198530), (69, 1181160), (72, 1131945), (85, 958824), (90, 905556), (92, 885870), (102, 799020), (108, 754630), (115, 708696), (120, 679167), (135, 603704), (136, 599265), (138, 590580), (153, 532680), (170, 479412), (180, 452778), (184, 442935), (193, 422280), (204, 399510), (207, 393720), (216, 377315), (230, 354348), (255, 319608), (270, 301852), (276, 295290), (306, 266340), (340, 239706), (345, 236232), (360, 226389), (386, 211140), (391, 208440), (408, 199755), (414, 196860), (459, 177560), (460, 177174), (510, 159804), (540, 150926), (552, 147645), (579, 140760), (612, 133170), (621, 131240), (680, 119853), (690, 118116), (765, 106536), (772, 105570), (782, 104220), (828, 98430), (918, 88780), (920, 88587), (965, 84456), (1020, 79902), (1035, 78744), (1080, 75463), (1158, 70380), (1173, 69480), (1224, 66585), (1242, 65620), (1380, 59058), (1530, 53268), (1544, 52785), (1564, 52110), (1656, 49215), (1737, 46920), (1836, 44390), (1930, 42228), (1955, 41688), (2040, 39951), (2070, 39372), (2295, 35512), (2316, 35190), (2346, 34740), (2484, 32810), (2760, 29529), (2895, 28152), (3060, 26634), (3105, 26248), (3128, 26055), (3281, 24840), (3474, 23460), (3519, 23160), (3672, 22195), (3860, 21114), (3910, 20844), (4140, 19686), (4439, 18360), (4590, 17756), (4632, 17595), (4692, 17370), (4968, 16405), (5211, 15640), (5790, 14076), (5865, 13896), (6120, 13317), (6210, 13124), (6562, 12420), (6948, 11730), (7038, 11580), (7720, 10557), (7820, 10422), (8280, 9843), (8685, 9384), (8878, 9180)]