18320820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 59195136

約数和(自身を除く): 40874316

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 181, 210, 241, 362, 420, 482, 543, 723, 724, 905, 964, 1086, 1205, 1267, 1446, 1687, 1810, 2172, 2410, 2534, 2715, 2892, 3374, 3615, 3620, 3801, 4820, 5061, 5068, 5430, 6335, 6748, 7230, 7602, 8435, 10122, 10860, 12670, 14460, 15204, 16870, 19005, 20244, 25305, 25340, 33740, 38010, 43621, 50610, 76020, 87242, 101220, 130863, 174484, 218105, 261726, 305347, 436210, 523452, 610694, 654315, 872420, 916041, 1221388, 1308630, 1526735, 1832082, 2617260, 3053470, 3664164, 4580205, 6106940, 9160410, 18320820]

約数ペア:

[(1, 18320820), (2, 9160410), (3, 6106940), (4, 4580205), (5, 3664164), (6, 3053470), (7, 2617260), (10, 1832082), (12, 1526735), (14, 1308630), (15, 1221388), (20, 916041), (21, 872420), (28, 654315), (30, 610694), (35, 523452), (42, 436210), (60, 305347), (70, 261726), (84, 218105), (105, 174484), (140, 130863), (181, 101220), (210, 87242), (241, 76020), (362, 50610), (420, 43621), (482, 38010), (543, 33740), (723, 25340), (724, 25305), (905, 20244), (964, 19005), (1086, 16870), (1205, 15204), (1267, 14460), (1446, 12670), (1687, 10860), (1810, 10122), (2172, 8435), (2410, 7602), (2534, 7230), (2715, 6748), (2892, 6335), (3374, 5430), (3615, 5068), (3620, 5061), (3801, 4820)]