21992640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:790

約数の個数: 112

約数和(自身を含む): 72176640

約数和(自身を除く): 50184000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 739, 744, 930, 960, 992, 1240, 1478, 1488, 1860, 1984, 2217, 2480, 2956, 2976, 3695, 3720, 4434, 4960, 5912, 5952, 7390, 7440, 8868, 9920, 11085, 11824, 14780, 14880, 17736, 22170, 22909, 23648, 29560, 29760, 35472, 44340, 45818, 47296, 59120, 68727, 70944, 88680, 91636, 114545, 118240, 137454, 141888, 177360, 183272, 229090, 236480, 274908, 343635, 354720, 366544, 458180, 549816, 687270, 709440, 733088, 916360, 1099632, 1374540, 1466176, 1832720, 2199264, 2749080, 3665440, 4398528, 5498160, 7330880, 10996320, 21992640]

約数ペア:

[(1, 21992640), (2, 10996320), (3, 7330880), (4, 5498160), (5, 4398528), (6, 3665440), (8, 2749080), (10, 2199264), (12, 1832720), (15, 1466176), (16, 1374540), (20, 1099632), (24, 916360), (30, 733088), (31, 709440), (32, 687270), (40, 549816), (48, 458180), (60, 366544), (62, 354720), (64, 343635), (80, 274908), (93, 236480), (96, 229090), (120, 183272), (124, 177360), (155, 141888), (160, 137454), (186, 118240), (192, 114545), (240, 91636), (248, 88680), (310, 70944), (320, 68727), (372, 59120), (465, 47296), (480, 45818), (496, 44340), (620, 35472), (739, 29760), (744, 29560), (930, 23648), (960, 22909), (992, 22170), (1240, 17736), (1478, 14880), (1488, 14780), (1860, 11824), (1984, 11085), (2217, 9920), (2480, 8868), (2956, 7440), (2976, 7390), (3695, 5952), (3720, 5912), (4434, 4960)]