678660780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{359}}^1\times {\mathrm{643}}^1$

素因数の和:1028

約数の個数: 144

約数和(自身を含む): 2220099840

約数和(自身を除く): 1541439060

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, 210, 245, 294, 359, 420, 490, 588, 643, 718, 735, 980, 1077, 1286, 1436, 1470, 1795, 1929, 2154, 2513, 2572, 2940, 3215, 3590, 3858, 4308, 4501, 5026, 5385, 6430, 7180, 7539, 7716, 9002, 9645, 10052, 10770, 12565, 12860, 13503, 15078, 17591, 18004, 19290, 21540, 22505, 25130, 27006, 30156, 31507, 35182, 37695, 38580, 45010, 50260, 52773, 54012, 63014, 67515, 70364, 75390, 87955, 90020, 94521, 105546, 126028, 135030, 150780, 157535, 175910, 189042, 211092, 230837, 263865, 270060, 315070, 351820, 378084, 461674, 472605, 527730, 630140, 692511, 923348, 945210, 1055460, 1154185, 1385022, 1615859, 1890420, 2308370, 2770044, 3231718, 3462555, 4616740, 4847577, 6463436, 6925110, 8079295, 9695154, 11311013, 13850220, 16158590, 19390308, 22622026, 24237885, 32317180, 33933039, 45244052, 48475770, 56555065, 67866078, 96951540, 113110130, 135732156, 169665195, 226220260, 339330390, 678660780]

約数ペア:

[(1, 678660780), (2, 339330390), (3, 226220260), (4, 169665195), (5, 135732156), (6, 113110130), (7, 96951540), (10, 67866078), (12, 56555065), (14, 48475770), (15, 45244052), (20, 33933039), (21, 32317180), (28, 24237885), (30, 22622026), (35, 19390308), (42, 16158590), (49, 13850220), (60, 11311013), (70, 9695154), (84, 8079295), (98, 6925110), (105, 6463436), (140, 4847577), (147, 4616740), (196, 3462555), (210, 3231718), (245, 2770044), (294, 2308370), (359, 1890420), (420, 1615859), (490, 1385022), (588, 1154185), (643, 1055460), (718, 945210), (735, 923348), (980, 692511), (1077, 630140), (1286, 527730), (1436, 472605), (1470, 461674), (1795, 378084), (1929, 351820), (2154, 315070), (2513, 270060), (2572, 263865), (2940, 230837), (3215, 211092), (3590, 189042), (3858, 175910), (4308, 157535), (4501, 150780), (5026, 135030), (5385, 126028), (6430, 105546), (7180, 94521), (7539, 90020), (7716, 87955), (9002, 75390), (9645, 70364), (10052, 67515), (10770, 63014), (12565, 54012), (12860, 52773), (13503, 50260), (15078, 45010), (17591, 38580), (18004, 37695), (19290, 35182), (21540, 31507), (22505, 30156), (25130, 27006)]