320027820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{547}}^1$

素因数の和:772

約数の個数: 144

約数和(自身を含む): 1049529600

約数和(自身を除く): 729501780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 199, 210, 245, 294, 398, 420, 490, 547, 588, 597, 735, 796, 980, 995, 1094, 1194, 1393, 1470, 1641, 1990, 2188, 2388, 2735, 2786, 2940, 2985, 3282, 3829, 3980, 4179, 5470, 5572, 5970, 6564, 6965, 7658, 8205, 8358, 9751, 10940, 11487, 11940, 13930, 15316, 16410, 16716, 19145, 19502, 20895, 22974, 26803, 27860, 29253, 32820, 38290, 39004, 41790, 45948, 48755, 53606, 57435, 58506, 76580, 80409, 83580, 97510, 107212, 108853, 114870, 117012, 134015, 146265, 160818, 195020, 217706, 229740, 268030, 292530, 321636, 326559, 402045, 435412, 536060, 544265, 585060, 653118, 761971, 804090, 1088530, 1306236, 1523942, 1608180, 1632795, 2177060, 2285913, 3047884, 3265590, 3809855, 4571826, 5333797, 6531180, 7619710, 9143652, 10667594, 11429565, 15239420, 16001391, 21335188, 22859130, 26668985, 32002782, 45718260, 53337970, 64005564, 80006955, 106675940, 160013910, 320027820]

約数ペア:

[(1, 320027820), (2, 160013910), (3, 106675940), (4, 80006955), (5, 64005564), (6, 53337970), (7, 45718260), (10, 32002782), (12, 26668985), (14, 22859130), (15, 21335188), (20, 16001391), (21, 15239420), (28, 11429565), (30, 10667594), (35, 9143652), (42, 7619710), (49, 6531180), (60, 5333797), (70, 4571826), (84, 3809855), (98, 3265590), (105, 3047884), (140, 2285913), (147, 2177060), (196, 1632795), (199, 1608180), (210, 1523942), (245, 1306236), (294, 1088530), (398, 804090), (420, 761971), (490, 653118), (547, 585060), (588, 544265), (597, 536060), (735, 435412), (796, 402045), (980, 326559), (995, 321636), (1094, 292530), (1194, 268030), (1393, 229740), (1470, 217706), (1641, 195020), (1990, 160818), (2188, 146265), (2388, 134015), (2735, 117012), (2786, 114870), (2940, 108853), (2985, 107212), (3282, 97510), (3829, 83580), (3980, 80409), (4179, 76580), (5470, 58506), (5572, 57435), (5970, 53606), (6564, 48755), (6965, 45948), (7658, 41790), (8205, 39004), (8358, 38290), (9751, 32820), (10940, 29253), (11487, 27860), (11940, 26803), (13930, 22974), (15316, 20895), (16410, 19502), (16716, 19145)]