678556620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1627}}^1$

素因数の和:1980

約数の個数: 144

約数和(自身を含む): 2360886528

約数和(自身を除く): 1682329908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 331, 420, 630, 662, 993, 1260, 1324, 1627, 1655, 1986, 2317, 2979, 3254, 3310, 3972, 4634, 4881, 4965, 5958, 6508, 6620, 6951, 8135, 9268, 9762, 9930, 11389, 11585, 11916, 13902, 14643, 14895, 16270, 19524, 19860, 20853, 22778, 23170, 24405, 27804, 29286, 29790, 32540, 34167, 34755, 41706, 45556, 46340, 48810, 56945, 58572, 59580, 68334, 69510, 73215, 83412, 97620, 102501, 104265, 113890, 136668, 139020, 146430, 170835, 205002, 208530, 227780, 292860, 341670, 410004, 417060, 512505, 538537, 683340, 1025010, 1077074, 1615611, 2050020, 2154148, 2692685, 3231222, 3769759, 4846833, 5385370, 6462444, 7539518, 8078055, 9693666, 10770740, 11309277, 15079036, 16156110, 18848795, 19387332, 22618554, 24234165, 32312220, 33927831, 37697590, 45237108, 48468330, 56546385, 67855662, 75395180, 96936660, 113092770, 135711324, 169639155, 226185540, 339278310, 678556620]

約数ペア:

[(1, 678556620), (2, 339278310), (3, 226185540), (4, 169639155), (5, 135711324), (6, 113092770), (7, 96936660), (9, 75395180), (10, 67855662), (12, 56546385), (14, 48468330), (15, 45237108), (18, 37697590), (20, 33927831), (21, 32312220), (28, 24234165), (30, 22618554), (35, 19387332), (36, 18848795), (42, 16156110), (45, 15079036), (60, 11309277), (63, 10770740), (70, 9693666), (84, 8078055), (90, 7539518), (105, 6462444), (126, 5385370), (140, 4846833), (180, 3769759), (210, 3231222), (252, 2692685), (315, 2154148), (331, 2050020), (420, 1615611), (630, 1077074), (662, 1025010), (993, 683340), (1260, 538537), (1324, 512505), (1627, 417060), (1655, 410004), (1986, 341670), (2317, 292860), (2979, 227780), (3254, 208530), (3310, 205002), (3972, 170835), (4634, 146430), (4881, 139020), (4965, 136668), (5958, 113890), (6508, 104265), (6620, 102501), (6951, 97620), (8135, 83412), (9268, 73215), (9762, 69510), (9930, 68334), (11389, 59580), (11585, 58572), (11916, 56945), (13902, 48810), (14643, 46340), (14895, 45556), (16270, 41706), (19524, 34755), (19860, 34167), (20853, 32540), (22778, 29790), (23170, 29286), (24405, 27804)]