213440220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2777}}^1$

素因数の和:2860

約数の個数: 144

約数和(自身を含む): 752326848

約数和(自身を除く): 538886628

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, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 305, 315, 366, 420, 427, 549, 610, 630, 732, 854, 915, 1098, 1220, 1260, 1281, 1708, 1830, 2135, 2196, 2562, 2745, 2777, 3660, 3843, 4270, 5124, 5490, 5554, 6405, 7686, 8331, 8540, 10980, 11108, 12810, 13885, 15372, 16662, 19215, 19439, 24993, 25620, 27770, 33324, 38430, 38878, 41655, 49986, 55540, 58317, 76860, 77756, 83310, 97195, 99972, 116634, 124965, 166620, 169397, 174951, 194390, 233268, 249930, 291585, 338794, 349902, 388780, 499860, 508191, 583170, 677588, 699804, 846985, 874755, 1016382, 1166340, 1185779, 1524573, 1693970, 1749510, 2032764, 2371558, 2540955, 3049146, 3387940, 3499020, 3557337, 4743116, 5081910, 5928895, 6098292, 7114674, 7622865, 10163820, 10672011, 11857790, 14229348, 15245730, 17786685, 21344022, 23715580, 30491460, 35573370, 42688044, 53360055, 71146740, 106720110, 213440220]

約数ペア:

[(1, 213440220), (2, 106720110), (3, 71146740), (4, 53360055), (5, 42688044), (6, 35573370), (7, 30491460), (9, 23715580), (10, 21344022), (12, 17786685), (14, 15245730), (15, 14229348), (18, 11857790), (20, 10672011), (21, 10163820), (28, 7622865), (30, 7114674), (35, 6098292), (36, 5928895), (42, 5081910), (45, 4743116), (60, 3557337), (61, 3499020), (63, 3387940), (70, 3049146), (84, 2540955), (90, 2371558), (105, 2032764), (122, 1749510), (126, 1693970), (140, 1524573), (180, 1185779), (183, 1166340), (210, 1016382), (244, 874755), (252, 846985), (305, 699804), (315, 677588), (366, 583170), (420, 508191), (427, 499860), (549, 388780), (610, 349902), (630, 338794), (732, 291585), (854, 249930), (915, 233268), (1098, 194390), (1220, 174951), (1260, 169397), (1281, 166620), (1708, 124965), (1830, 116634), (2135, 99972), (2196, 97195), (2562, 83310), (2745, 77756), (2777, 76860), (3660, 58317), (3843, 55540), (4270, 49986), (5124, 41655), (5490, 38878), (5554, 38430), (6405, 33324), (7686, 27770), (8331, 25620), (8540, 24993), (10980, 19439), (11108, 19215), (12810, 16662), (13885, 15372)]