20218440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1$

素因数の和:112

約数の個数: 192

約数和(自身を含む): 71616960

約数和(自身を除く): 51398520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 53, 55, 60, 66, 68, 85, 88, 102, 106, 110, 120, 132, 136, 159, 165, 170, 187, 204, 212, 220, 255, 264, 265, 289, 318, 330, 340, 374, 408, 424, 440, 510, 530, 561, 578, 583, 636, 660, 680, 748, 795, 867, 901, 935, 1020, 1060, 1122, 1156, 1166, 1272, 1320, 1445, 1496, 1590, 1734, 1749, 1802, 1870, 2040, 2120, 2244, 2312, 2332, 2703, 2805, 2890, 2915, 3179, 3180, 3468, 3498, 3604, 3740, 4335, 4488, 4505, 4664, 5406, 5610, 5780, 5830, 6358, 6360, 6936, 6996, 7208, 7480, 8670, 8745, 9010, 9537, 9911, 10812, 11220, 11560, 11660, 12716, 13515, 13992, 15317, 15895, 17340, 17490, 18020, 19074, 19822, 21624, 22440, 23320, 25432, 27030, 29733, 30634, 31790, 34680, 34980, 36040, 38148, 39644, 45951, 47685, 49555, 54060, 59466, 61268, 63580, 69960, 76296, 76585, 79288, 91902, 95370, 99110, 108120, 118932, 122536, 127160, 148665, 153170, 168487, 183804, 190740, 198220, 229755, 237864, 297330, 306340, 336974, 367608, 381480, 396440, 459510, 505461, 594660, 612680, 673948, 842435, 919020, 1010922, 1189320, 1347896, 1684870, 1838040, 2021844, 2527305, 3369740, 4043688, 5054610, 6739480, 10109220, 20218440]

約数ペア:

[(1, 20218440), (2, 10109220), (3, 6739480), (4, 5054610), (5, 4043688), (6, 3369740), (8, 2527305), (10, 2021844), (11, 1838040), (12, 1684870), (15, 1347896), (17, 1189320), (20, 1010922), (22, 919020), (24, 842435), (30, 673948), (33, 612680), (34, 594660), (40, 505461), (44, 459510), (51, 396440), (53, 381480), (55, 367608), (60, 336974), (66, 306340), (68, 297330), (85, 237864), (88, 229755), (102, 198220), (106, 190740), (110, 183804), (120, 168487), (132, 153170), (136, 148665), (159, 127160), (165, 122536), (170, 118932), (187, 108120), (204, 99110), (212, 95370), (220, 91902), (255, 79288), (264, 76585), (265, 76296), (289, 69960), (318, 63580), (330, 61268), (340, 59466), (374, 54060), (408, 49555), (424, 47685), (440, 45951), (510, 39644), (530, 38148), (561, 36040), (578, 34980), (583, 34680), (636, 31790), (660, 30634), (680, 29733), (748, 27030), (795, 25432), (867, 23320), (901, 22440), (935, 21624), (1020, 19822), (1060, 19074), (1122, 18020), (1156, 17490), (1166, 17340), (1272, 15895), (1320, 15317), (1445, 13992), (1496, 13515), (1590, 12716), (1734, 11660), (1749, 11560), (1802, 11220), (1870, 10812), (2040, 9911), (2120, 9537), (2244, 9010), (2312, 8745), (2332, 8670), (2703, 7480), (2805, 7208), (2890, 6996), (2915, 6936), (3179, 6360), (3180, 6358), (3468, 5830), (3498, 5780), (3604, 5610), (3740, 5406), (4335, 4664), (4488, 4505)]