21782640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:287

約数の個数: 160

約数和(自身を含む): 75995136

約数和(自身を除く): 54212496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 37, 40, 44, 48, 55, 60, 66, 74, 80, 88, 110, 111, 120, 132, 148, 165, 176, 185, 220, 222, 223, 240, 264, 296, 330, 370, 407, 440, 444, 446, 528, 555, 592, 660, 669, 740, 814, 880, 888, 892, 1110, 1115, 1221, 1320, 1338, 1480, 1628, 1776, 1784, 2035, 2220, 2230, 2442, 2453, 2640, 2676, 2960, 3256, 3345, 3568, 4070, 4440, 4460, 4884, 4906, 5352, 6105, 6512, 6690, 7359, 8140, 8251, 8880, 8920, 9768, 9812, 10704, 12210, 12265, 13380, 14718, 16280, 16502, 17840, 19536, 19624, 24420, 24530, 24753, 26760, 29436, 32560, 33004, 36795, 39248, 41255, 48840, 49060, 49506, 53520, 58872, 66008, 73590, 82510, 90761, 97680, 98120, 99012, 117744, 123765, 132016, 147180, 165020, 181522, 196240, 198024, 247530, 272283, 294360, 330040, 363044, 396048, 453805, 495060, 544566, 588720, 660080, 726088, 907610, 990120, 1089132, 1361415, 1452176, 1815220, 1980240, 2178264, 2722830, 3630440, 4356528, 5445660, 7260880, 10891320, 21782640]

約数ペア:

[(1, 21782640), (2, 10891320), (3, 7260880), (4, 5445660), (5, 4356528), (6, 3630440), (8, 2722830), (10, 2178264), (11, 1980240), (12, 1815220), (15, 1452176), (16, 1361415), (20, 1089132), (22, 990120), (24, 907610), (30, 726088), (33, 660080), (37, 588720), (40, 544566), (44, 495060), (48, 453805), (55, 396048), (60, 363044), (66, 330040), (74, 294360), (80, 272283), (88, 247530), (110, 198024), (111, 196240), (120, 181522), (132, 165020), (148, 147180), (165, 132016), (176, 123765), (185, 117744), (220, 99012), (222, 98120), (223, 97680), (240, 90761), (264, 82510), (296, 73590), (330, 66008), (370, 58872), (407, 53520), (440, 49506), (444, 49060), (446, 48840), (528, 41255), (555, 39248), (592, 36795), (660, 33004), (669, 32560), (740, 29436), (814, 26760), (880, 24753), (888, 24530), (892, 24420), (1110, 19624), (1115, 19536), (1221, 17840), (1320, 16502), (1338, 16280), (1480, 14718), (1628, 13380), (1776, 12265), (1784, 12210), (2035, 10704), (2220, 9812), (2230, 9768), (2442, 8920), (2453, 8880), (2640, 8251), (2676, 8140), (2960, 7359), (3256, 6690), (3345, 6512), (3568, 6105), (4070, 5352), (4440, 4906), (4460, 4884)]