261390240

素因数分解:

$2^5\times 3^9\times 5^1\times {\mathrm{83}}^1$

素因数の和:125

約数の個数: 240

約数和(自身を含む): 937446048

約数和(自身を除く): 676055808

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 83, 90, 96, 108, 120, 135, 144, 160, 162, 166, 180, 216, 240, 243, 249, 270, 288, 324, 332, 360, 405, 415, 432, 480, 486, 498, 540, 648, 664, 720, 729, 747, 810, 830, 864, 972, 996, 1080, 1215, 1245, 1296, 1328, 1440, 1458, 1494, 1620, 1660, 1944, 1992, 2160, 2187, 2241, 2430, 2490, 2592, 2656, 2916, 2988, 3240, 3320, 3645, 3735, 3888, 3984, 4320, 4374, 4482, 4860, 4980, 5832, 5976, 6480, 6561, 6640, 6723, 7290, 7470, 7776, 7968, 8748, 8964, 9720, 9960, 10935, 11205, 11664, 11952, 12960, 13122, 13280, 13446, 14580, 14940, 17496, 17928, 19440, 19683, 19920, 20169, 21870, 22410, 23328, 23904, 26244, 26892, 29160, 29880, 32805, 33615, 34992, 35856, 38880, 39366, 39840, 40338, 43740, 44820, 52488, 53784, 58320, 59760, 60507, 65610, 67230, 69984, 71712, 78732, 80676, 87480, 89640, 98415, 100845, 104976, 107568, 116640, 119520, 121014, 131220, 134460, 157464, 161352, 174960, 179280, 181521, 196830, 201690, 209952, 215136, 242028, 262440, 268920, 302535, 314928, 322704, 349920, 358560, 363042, 393660, 403380, 484056, 524880, 537840, 544563, 605070, 629856, 645408, 726084, 787320, 806760, 907605, 968112, 1049760, 1075680, 1089126, 1210140, 1452168, 1574640, 1613520, 1633689, 1815210, 1936224, 2178252, 2420280, 2722815, 2904336, 3149280, 3227040, 3267378, 3630420, 4356504, 4840560, 5445630, 5808672, 6534756, 7260840, 8168445, 8713008, 9681120, 10891260, 13069512, 14521680, 16336890, 17426016, 21782520, 26139024, 29043360, 32673780, 43565040, 52278048, 65347560, 87130080, 130695120, 261390240]

約数ペア:

[(1, 261390240), (2, 130695120), (3, 87130080), (4, 65347560), (5, 52278048), (6, 43565040), (8, 32673780), (9, 29043360), (10, 26139024), (12, 21782520), (15, 17426016), (16, 16336890), (18, 14521680), (20, 13069512), (24, 10891260), (27, 9681120), (30, 8713008), (32, 8168445), (36, 7260840), (40, 6534756), (45, 5808672), (48, 5445630), (54, 4840560), (60, 4356504), (72, 3630420), (80, 3267378), (81, 3227040), (83, 3149280), (90, 2904336), (96, 2722815), (108, 2420280), (120, 2178252), (135, 1936224), (144, 1815210), (160, 1633689), (162, 1613520), (166, 1574640), (180, 1452168), (216, 1210140), (240, 1089126), (243, 1075680), (249, 1049760), (270, 968112), (288, 907605), (324, 806760), (332, 787320), (360, 726084), (405, 645408), (415, 629856), (432, 605070), (480, 544563), (486, 537840), (498, 524880), (540, 484056), (648, 403380), (664, 393660), (720, 363042), (729, 358560), (747, 349920), (810, 322704), (830, 314928), (864, 302535), (972, 268920), (996, 262440), (1080, 242028), (1215, 215136), (1245, 209952), (1296, 201690), (1328, 196830), (1440, 181521), (1458, 179280), (1494, 174960), (1620, 161352), (1660, 157464), (1944, 134460), (1992, 131220), (2160, 121014), (2187, 119520), (2241, 116640), (2430, 107568), (2490, 104976), (2592, 100845), (2656, 98415), (2916, 89640), (2988, 87480), (3240, 80676), (3320, 78732), (3645, 71712), (3735, 69984), (3888, 67230), (3984, 65610), (4320, 60507), (4374, 59760), (4482, 58320), (4860, 53784), (4980, 52488), (5832, 44820), (5976, 43740), (6480, 40338), (6561, 39840), (6640, 39366), (6723, 38880), (7290, 35856), (7470, 34992), (7776, 33615), (7968, 32805), (8748, 29880), (8964, 29160), (9720, 26892), (9960, 26244), (10935, 23904), (11205, 23328), (11664, 22410), (11952, 21870), (12960, 20169), (13122, 19920), (13280, 19683), (13446, 19440), (14580, 17928), (14940, 17496)]