261519840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1231

約数の個数: 240

約数和(自身を含む): 978061392

約数和(自身を除く): 716541552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 96, 102, 108, 120, 135, 136, 144, 153, 160, 162, 170, 180, 204, 216, 240, 255, 270, 272, 288, 306, 324, 340, 360, 405, 408, 432, 459, 480, 510, 540, 544, 612, 648, 680, 720, 765, 810, 816, 864, 918, 1020, 1080, 1187, 1224, 1296, 1360, 1377, 1440, 1530, 1620, 1632, 1836, 2040, 2160, 2295, 2374, 2448, 2592, 2720, 2754, 3060, 3240, 3561, 3672, 4080, 4320, 4590, 4748, 4896, 5508, 5935, 6120, 6480, 6885, 7122, 7344, 8160, 9180, 9496, 10683, 11016, 11870, 12240, 12960, 13770, 14244, 14688, 17805, 18360, 18992, 20179, 21366, 22032, 23740, 24480, 27540, 28488, 32049, 35610, 36720, 37984, 40358, 42732, 44064, 47480, 53415, 55080, 56976, 60537, 64098, 71220, 73440, 80716, 85464, 94960, 96147, 100895, 106830, 110160, 113952, 121074, 128196, 142440, 160245, 161432, 170928, 181611, 189920, 192294, 201790, 213660, 220320, 242148, 256392, 284880, 302685, 320490, 322864, 341856, 363222, 384588, 403580, 427320, 480735, 484296, 512784, 544833, 569760, 605370, 640980, 645728, 726444, 769176, 807160, 854640, 908055, 961470, 968592, 1025568, 1089666, 1210740, 1281960, 1452888, 1538352, 1614320, 1634499, 1709280, 1816110, 1922940, 1937184, 2179332, 2421480, 2563920, 2724165, 2905776, 3076704, 3228640, 3268998, 3632220, 3845880, 4358664, 4842960, 5127840, 5448330, 5811552, 6537996, 7264440, 7691760, 8172495, 8717328, 9685920, 10896660, 13075992, 14528880, 15383520, 16344990, 17434656, 21793320, 26151984, 29057760, 32689980, 43586640, 52303968, 65379960, 87173280, 130759920, 261519840]

約数ペア:

[(1, 261519840), (2, 130759920), (3, 87173280), (4, 65379960), (5, 52303968), (6, 43586640), (8, 32689980), (9, 29057760), (10, 26151984), (12, 21793320), (15, 17434656), (16, 16344990), (17, 15383520), (18, 14528880), (20, 13075992), (24, 10896660), (27, 9685920), (30, 8717328), (32, 8172495), (34, 7691760), (36, 7264440), (40, 6537996), (45, 5811552), (48, 5448330), (51, 5127840), (54, 4842960), (60, 4358664), (68, 3845880), (72, 3632220), (80, 3268998), (81, 3228640), (85, 3076704), (90, 2905776), (96, 2724165), (102, 2563920), (108, 2421480), (120, 2179332), (135, 1937184), (136, 1922940), (144, 1816110), (153, 1709280), (160, 1634499), (162, 1614320), (170, 1538352), (180, 1452888), (204, 1281960), (216, 1210740), (240, 1089666), (255, 1025568), (270, 968592), (272, 961470), (288, 908055), (306, 854640), (324, 807160), (340, 769176), (360, 726444), (405, 645728), (408, 640980), (432, 605370), (459, 569760), (480, 544833), (510, 512784), (540, 484296), (544, 480735), (612, 427320), (648, 403580), (680, 384588), (720, 363222), (765, 341856), (810, 322864), (816, 320490), (864, 302685), (918, 284880), (1020, 256392), (1080, 242148), (1187, 220320), (1224, 213660), (1296, 201790), (1360, 192294), (1377, 189920), (1440, 181611), (1530, 170928), (1620, 161432), (1632, 160245), (1836, 142440), (2040, 128196), (2160, 121074), (2295, 113952), (2374, 110160), (2448, 106830), (2592, 100895), (2720, 96147), (2754, 94960), (3060, 85464), (3240, 80716), (3561, 73440), (3672, 71220), (4080, 64098), (4320, 60537), (4590, 56976), (4748, 55080), (4896, 53415), (5508, 47480), (5935, 44064), (6120, 42732), (6480, 40358), (6885, 37984), (7122, 36720), (7344, 35610), (8160, 32049), (9180, 28488), (9496, 27540), (10683, 24480), (11016, 23740), (11870, 22032), (12240, 21366), (12960, 20179), (13770, 18992), (14244, 18360), (14688, 17805)]