261635040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5861}}^1$

素因数の和:5913

約数の個数: 144

約数和(自身を含む): 921787776

約数和(自身を除く): 660152736

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 480, 496, 558, 620, 720, 744, 930, 992, 1116, 1240, 1395, 1440, 1488, 1860, 2232, 2480, 2790, 2976, 3720, 4464, 4960, 5580, 5861, 7440, 8928, 11160, 11722, 14880, 17583, 22320, 23444, 29305, 35166, 44640, 46888, 52749, 58610, 70332, 87915, 93776, 105498, 117220, 140664, 175830, 181691, 187552, 210996, 234440, 263745, 281328, 351660, 363382, 421992, 468880, 527490, 545073, 562656, 703320, 726764, 843984, 908455, 937760, 1054980, 1090146, 1406640, 1453528, 1635219, 1687968, 1816910, 2109960, 2180292, 2725365, 2813280, 2907056, 3270438, 3633820, 4219920, 4360584, 5450730, 5814112, 6540876, 7267640, 8176095, 8439840, 8721168, 10901460, 13081752, 14535280, 16352190, 17442336, 21802920, 26163504, 29070560, 32704380, 43605840, 52327008, 65408760, 87211680, 130817520, 261635040]

約数ペア:

[(1, 261635040), (2, 130817520), (3, 87211680), (4, 65408760), (5, 52327008), (6, 43605840), (8, 32704380), (9, 29070560), (10, 26163504), (12, 21802920), (15, 17442336), (16, 16352190), (18, 14535280), (20, 13081752), (24, 10901460), (30, 8721168), (31, 8439840), (32, 8176095), (36, 7267640), (40, 6540876), (45, 5814112), (48, 5450730), (60, 4360584), (62, 4219920), (72, 3633820), (80, 3270438), (90, 2907056), (93, 2813280), (96, 2725365), (120, 2180292), (124, 2109960), (144, 1816910), (155, 1687968), (160, 1635219), (180, 1453528), (186, 1406640), (240, 1090146), (248, 1054980), (279, 937760), (288, 908455), (310, 843984), (360, 726764), (372, 703320), (465, 562656), (480, 545073), (496, 527490), (558, 468880), (620, 421992), (720, 363382), (744, 351660), (930, 281328), (992, 263745), (1116, 234440), (1240, 210996), (1395, 187552), (1440, 181691), (1488, 175830), (1860, 140664), (2232, 117220), (2480, 105498), (2790, 93776), (2976, 87915), (3720, 70332), (4464, 58610), (4960, 52749), (5580, 46888), (5861, 44640), (7440, 35166), (8928, 29305), (11160, 23444), (11722, 22320), (14880, 17583)]