20564160

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:742

約数の個数: 112

約数和(自身を含む): 67494912

約数和(自身を除く): 46930752

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, 691, 744, 930, 960, 992, 1240, 1382, 1488, 1860, 1984, 2073, 2480, 2764, 2976, 3455, 3720, 4146, 4960, 5528, 5952, 6910, 7440, 8292, 9920, 10365, 11056, 13820, 14880, 16584, 20730, 21421, 22112, 27640, 29760, 33168, 41460, 42842, 44224, 55280, 64263, 66336, 82920, 85684, 107105, 110560, 128526, 132672, 165840, 171368, 214210, 221120, 257052, 321315, 331680, 342736, 428420, 514104, 642630, 663360, 685472, 856840, 1028208, 1285260, 1370944, 1713680, 2056416, 2570520, 3427360, 4112832, 5141040, 6854720, 10282080, 20564160]

約数ペア:

[(1, 20564160), (2, 10282080), (3, 6854720), (4, 5141040), (5, 4112832), (6, 3427360), (8, 2570520), (10, 2056416), (12, 1713680), (15, 1370944), (16, 1285260), (20, 1028208), (24, 856840), (30, 685472), (31, 663360), (32, 642630), (40, 514104), (48, 428420), (60, 342736), (62, 331680), (64, 321315), (80, 257052), (93, 221120), (96, 214210), (120, 171368), (124, 165840), (155, 132672), (160, 128526), (186, 110560), (192, 107105), (240, 85684), (248, 82920), (310, 66336), (320, 64263), (372, 55280), (465, 44224), (480, 42842), (496, 41460), (620, 33168), (691, 29760), (744, 27640), (930, 22112), (960, 21421), (992, 20730), (1240, 16584), (1382, 14880), (1488, 13820), (1860, 11056), (1984, 10365), (2073, 9920), (2480, 8292), (2764, 7440), (2976, 6910), (3455, 5952), (3720, 5528), (4146, 4960)]