81216480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:341

約数の個数: 192

約数和(自身を含む): 279236160

約数和(自身を除く): 198019680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 37, 40, 48, 51, 60, 68, 74, 80, 85, 96, 102, 111, 120, 136, 148, 160, 170, 185, 204, 222, 240, 255, 269, 272, 296, 340, 370, 408, 444, 480, 510, 538, 544, 555, 592, 629, 680, 740, 807, 816, 888, 1020, 1076, 1110, 1184, 1258, 1345, 1360, 1480, 1614, 1632, 1776, 1887, 2040, 2152, 2220, 2516, 2690, 2720, 2960, 3145, 3228, 3552, 3774, 4035, 4080, 4304, 4440, 4573, 5032, 5380, 5920, 6290, 6456, 7548, 8070, 8160, 8608, 8880, 9146, 9435, 9953, 10064, 10760, 12580, 12912, 13719, 15096, 16140, 17760, 18292, 18870, 19906, 20128, 21520, 22865, 25160, 25824, 27438, 29859, 30192, 32280, 36584, 37740, 39812, 43040, 45730, 49765, 50320, 54876, 59718, 60384, 64560, 68595, 73168, 75480, 79624, 91460, 99530, 100640, 109752, 119436, 129120, 137190, 146336, 149295, 150960, 159248, 169201, 182920, 199060, 219504, 238872, 274380, 298590, 301920, 318496, 338402, 365840, 398120, 439008, 477744, 507603, 548760, 597180, 676804, 731680, 796240, 846005, 955488, 1015206, 1097520, 1194360, 1353608, 1592480, 1692010, 2030412, 2195040, 2388720, 2538015, 2707216, 3384020, 4060824, 4777440, 5076030, 5414432, 6768040, 8121648, 10152060, 13536080, 16243296, 20304120, 27072160, 40608240, 81216480]

約数ペア:

[(1, 81216480), (2, 40608240), (3, 27072160), (4, 20304120), (5, 16243296), (6, 13536080), (8, 10152060), (10, 8121648), (12, 6768040), (15, 5414432), (16, 5076030), (17, 4777440), (20, 4060824), (24, 3384020), (30, 2707216), (32, 2538015), (34, 2388720), (37, 2195040), (40, 2030412), (48, 1692010), (51, 1592480), (60, 1353608), (68, 1194360), (74, 1097520), (80, 1015206), (85, 955488), (96, 846005), (102, 796240), (111, 731680), (120, 676804), (136, 597180), (148, 548760), (160, 507603), (170, 477744), (185, 439008), (204, 398120), (222, 365840), (240, 338402), (255, 318496), (269, 301920), (272, 298590), (296, 274380), (340, 238872), (370, 219504), (408, 199060), (444, 182920), (480, 169201), (510, 159248), (538, 150960), (544, 149295), (555, 146336), (592, 137190), (629, 129120), (680, 119436), (740, 109752), (807, 100640), (816, 99530), (888, 91460), (1020, 79624), (1076, 75480), (1110, 73168), (1184, 68595), (1258, 64560), (1345, 60384), (1360, 59718), (1480, 54876), (1614, 50320), (1632, 49765), (1776, 45730), (1887, 43040), (2040, 39812), (2152, 37740), (2220, 36584), (2516, 32280), (2690, 30192), (2720, 29859), (2960, 27438), (3145, 25824), (3228, 25160), (3552, 22865), (3774, 21520), (4035, 20128), (4080, 19906), (4304, 18870), (4440, 18292), (4573, 17760), (5032, 16140), (5380, 15096), (5920, 13719), (6290, 12912), (6456, 12580), (7548, 10760), (8070, 10064), (8160, 9953), (8608, 9435), (8880, 9146)]