20584620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:101

約数の個数: 216

約数和(自身を含む): 78073632

約数和(自身を除く): 57489012

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 31, 34, 35, 36, 42, 45, 51, 60, 62, 63, 68, 70, 84, 85, 90, 93, 102, 105, 119, 124, 126, 140, 153, 155, 170, 180, 186, 204, 210, 217, 238, 252, 255, 279, 306, 310, 315, 340, 357, 372, 420, 434, 465, 476, 510, 527, 558, 595, 612, 620, 630, 651, 714, 765, 868, 930, 961, 1020, 1054, 1071, 1085, 1116, 1190, 1260, 1302, 1395, 1428, 1530, 1581, 1785, 1860, 1922, 1953, 2108, 2142, 2170, 2380, 2604, 2635, 2790, 2883, 3060, 3162, 3255, 3570, 3689, 3844, 3906, 4284, 4340, 4743, 4805, 5270, 5355, 5580, 5766, 6324, 6510, 6727, 7140, 7378, 7812, 7905, 8649, 9486, 9610, 9765, 10540, 10710, 11067, 11532, 13020, 13454, 14415, 14756, 15810, 16337, 17298, 18445, 18972, 19220, 19530, 20181, 21420, 22134, 23715, 26908, 28830, 31620, 32674, 33201, 33635, 34596, 36890, 39060, 40362, 43245, 44268, 47430, 49011, 55335, 57660, 60543, 65348, 66402, 67270, 73780, 80724, 81685, 86490, 94860, 98022, 100905, 110670, 114359, 121086, 132804, 134540, 147033, 163370, 166005, 172980, 196044, 201810, 221340, 228718, 242172, 245055, 294066, 302715, 326740, 332010, 343077, 403620, 457436, 490110, 571795, 588132, 605430, 664020, 686154, 735165, 980220, 1029231, 1143590, 1210860, 1372308, 1470330, 1715385, 2058462, 2287180, 2940660, 3430770, 4116924, 5146155, 6861540, 10292310, 20584620]

約数ペア:

[(1, 20584620), (2, 10292310), (3, 6861540), (4, 5146155), (5, 4116924), (6, 3430770), (7, 2940660), (9, 2287180), (10, 2058462), (12, 1715385), (14, 1470330), (15, 1372308), (17, 1210860), (18, 1143590), (20, 1029231), (21, 980220), (28, 735165), (30, 686154), (31, 664020), (34, 605430), (35, 588132), (36, 571795), (42, 490110), (45, 457436), (51, 403620), (60, 343077), (62, 332010), (63, 326740), (68, 302715), (70, 294066), (84, 245055), (85, 242172), (90, 228718), (93, 221340), (102, 201810), (105, 196044), (119, 172980), (124, 166005), (126, 163370), (140, 147033), (153, 134540), (155, 132804), (170, 121086), (180, 114359), (186, 110670), (204, 100905), (210, 98022), (217, 94860), (238, 86490), (252, 81685), (255, 80724), (279, 73780), (306, 67270), (310, 66402), (315, 65348), (340, 60543), (357, 57660), (372, 55335), (420, 49011), (434, 47430), (465, 44268), (476, 43245), (510, 40362), (527, 39060), (558, 36890), (595, 34596), (612, 33635), (620, 33201), (630, 32674), (651, 31620), (714, 28830), (765, 26908), (868, 23715), (930, 22134), (961, 21420), (1020, 20181), (1054, 19530), (1071, 19220), (1085, 18972), (1116, 18445), (1190, 17298), (1260, 16337), (1302, 15810), (1395, 14756), (1428, 14415), (1530, 13454), (1581, 13020), (1785, 11532), (1860, 11067), (1922, 10710), (1953, 10540), (2108, 9765), (2142, 9610), (2170, 9486), (2380, 8649), (2604, 7905), (2635, 7812), (2790, 7378), (2883, 7140), (3060, 6727), (3162, 6510), (3255, 6324), (3570, 5766), (3689, 5580), (3844, 5355), (3906, 5270), (4284, 4805), (4340, 4743)]