19986540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2069}}^1$

素因数の和:2111

約数の個数: 96

約数和(自身を含む): 66769920

約数和(自身を除く): 46783380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2069, 2415, 3220, 4138, 4830, 6207, 8276, 9660, 10345, 12414, 14483, 20690, 24828, 28966, 31035, 41380, 43449, 47587, 57932, 62070, 72415, 86898, 95174, 124140, 142761, 144830, 173796, 190348, 217245, 237935, 285522, 289660, 333109, 434490, 475870, 571044, 666218, 713805, 868980, 951740, 999327, 1332436, 1427610, 1665545, 1998654, 2855220, 3331090, 3997308, 4996635, 6662180, 9993270, 19986540]

約数ペア:

[(1, 19986540), (2, 9993270), (3, 6662180), (4, 4996635), (5, 3997308), (6, 3331090), (7, 2855220), (10, 1998654), (12, 1665545), (14, 1427610), (15, 1332436), (20, 999327), (21, 951740), (23, 868980), (28, 713805), (30, 666218), (35, 571044), (42, 475870), (46, 434490), (60, 333109), (69, 289660), (70, 285522), (84, 237935), (92, 217245), (105, 190348), (115, 173796), (138, 144830), (140, 142761), (161, 124140), (210, 95174), (230, 86898), (276, 72415), (322, 62070), (345, 57932), (420, 47587), (460, 43449), (483, 41380), (644, 31035), (690, 28966), (805, 24828), (966, 20690), (1380, 14483), (1610, 12414), (1932, 10345), (2069, 9660), (2415, 8276), (3220, 6207), (4138, 4830)]