20130771640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{31547}}^1$

素因数の和:31661

約数の個数: 128

約数和(自身を含む): 53969794560

約数和(自身を除く): 33839022920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 53, 56, 70, 86, 106, 140, 172, 212, 215, 265, 280, 301, 344, 371, 424, 430, 530, 602, 742, 860, 1060, 1204, 1484, 1505, 1720, 1855, 2120, 2279, 2408, 2968, 3010, 3710, 4558, 6020, 7420, 9116, 11395, 12040, 14840, 15953, 18232, 22790, 31547, 31906, 45580, 63094, 63812, 79765, 91160, 126188, 127624, 157735, 159530, 220829, 252376, 315470, 319060, 441658, 630940, 638120, 883316, 1104145, 1261880, 1356521, 1671991, 1766632, 2208290, 2713042, 3343982, 4416580, 5426084, 6687964, 6782605, 8359955, 8833160, 9495647, 10852168, 11703937, 13375928, 13565210, 16719910, 18991294, 23407874, 27130420, 33439820, 37982588, 46815748, 47478235, 54260840, 58519685, 66879640, 71895613, 75965176, 93631496, 94956470, 117039370, 143791226, 189912940, 234078740, 287582452, 359478065, 379825880, 468157480, 503269291, 575164904, 718956130, 1006538582, 1437912260, 2013077164, 2516346455, 2875824520, 4026154328, 5032692910, 10065385820, 20130771640]

約数ペア:

[(1, 20130771640), (2, 10065385820), (4, 5032692910), (5, 4026154328), (7, 2875824520), (8, 2516346455), (10, 2013077164), (14, 1437912260), (20, 1006538582), (28, 718956130), (35, 575164904), (40, 503269291), (43, 468157480), (53, 379825880), (56, 359478065), (70, 287582452), (86, 234078740), (106, 189912940), (140, 143791226), (172, 117039370), (212, 94956470), (215, 93631496), (265, 75965176), (280, 71895613), (301, 66879640), (344, 58519685), (371, 54260840), (424, 47478235), (430, 46815748), (530, 37982588), (602, 33439820), (742, 27130420), (860, 23407874), (1060, 18991294), (1204, 16719910), (1484, 13565210), (1505, 13375928), (1720, 11703937), (1855, 10852168), (2120, 9495647), (2279, 8833160), (2408, 8359955), (2968, 6782605), (3010, 6687964), (3710, 5426084), (4558, 4416580), (6020, 3343982), (7420, 2713042), (9116, 2208290), (11395, 1766632), (12040, 1671991), (14840, 1356521), (15953, 1261880), (18232, 1104145), (22790, 883316), (31547, 638120), (31906, 630940), (45580, 441658), (63094, 319060), (63812, 315470), (79765, 252376), (91160, 220829), (126188, 159530), (127624, 157735)]