20208978860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{2833}}^1$

素因数の和:3136

約数の個数: 144

約数和(自身を含む): 51291545760

約数和(自身を除く): 31082566900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 251, 290, 406, 490, 502, 580, 812, 980, 1004, 1015, 1255, 1421, 1757, 2030, 2510, 2833, 2842, 3514, 4060, 5020, 5666, 5684, 7028, 7105, 7279, 8785, 11332, 12299, 14165, 14210, 14558, 17570, 19831, 24598, 28330, 28420, 29116, 35140, 36395, 39662, 49196, 50953, 56660, 61495, 72790, 79324, 82157, 99155, 101906, 122990, 138817, 145580, 164314, 198310, 203812, 245980, 254765, 277634, 328628, 356671, 396620, 410785, 509530, 555268, 575099, 694085, 711083, 713342, 821570, 1019060, 1150198, 1388170, 1422166, 1426684, 1643140, 1783355, 2300396, 2776340, 2844332, 2875495, 3555415, 3566710, 4025693, 4977581, 5750990, 7110830, 7133420, 8051386, 9955162, 11501980, 14221660, 16102772, 19910324, 20128465, 20621407, 24887905, 34843067, 40256930, 41242814, 49775810, 69686134, 80513860, 82485628, 99551620, 103107035, 139372268, 144349849, 174215335, 206214070, 288699698, 348430670, 412428140, 577399396, 696861340, 721749245, 1010448943, 1443498490, 2020897886, 2886996980, 4041795772, 5052244715, 10104489430, 20208978860]

約数ペア:

[(1, 20208978860), (2, 10104489430), (4, 5052244715), (5, 4041795772), (7, 2886996980), (10, 2020897886), (14, 1443498490), (20, 1010448943), (28, 721749245), (29, 696861340), (35, 577399396), (49, 412428140), (58, 348430670), (70, 288699698), (98, 206214070), (116, 174215335), (140, 144349849), (145, 139372268), (196, 103107035), (203, 99551620), (245, 82485628), (251, 80513860), (290, 69686134), (406, 49775810), (490, 41242814), (502, 40256930), (580, 34843067), (812, 24887905), (980, 20621407), (1004, 20128465), (1015, 19910324), (1255, 16102772), (1421, 14221660), (1757, 11501980), (2030, 9955162), (2510, 8051386), (2833, 7133420), (2842, 7110830), (3514, 5750990), (4060, 4977581), (5020, 4025693), (5666, 3566710), (5684, 3555415), (7028, 2875495), (7105, 2844332), (7279, 2776340), (8785, 2300396), (11332, 1783355), (12299, 1643140), (14165, 1426684), (14210, 1422166), (14558, 1388170), (17570, 1150198), (19831, 1019060), (24598, 821570), (28330, 713342), (28420, 711083), (29116, 694085), (35140, 575099), (36395, 555268), (39662, 509530), (49196, 410785), (50953, 396620), (56660, 356671), (61495, 328628), (72790, 277634), (79324, 254765), (82157, 245980), (99155, 203812), (101906, 198310), (122990, 164314), (138817, 145580)]