20390160

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 160

約数和(自身を含む): 73923840

約数和(自身を除く): 53533680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 53, 56, 60, 70, 80, 84, 105, 106, 112, 120, 140, 159, 168, 210, 212, 229, 240, 265, 280, 318, 336, 371, 420, 424, 458, 530, 560, 636, 687, 742, 795, 840, 848, 916, 1060, 1113, 1145, 1272, 1374, 1484, 1590, 1603, 1680, 1832, 1855, 2120, 2226, 2290, 2544, 2748, 2968, 3180, 3206, 3435, 3664, 3710, 4240, 4452, 4580, 4809, 5496, 5565, 5936, 6360, 6412, 6870, 7420, 8015, 8904, 9160, 9618, 10992, 11130, 12137, 12720, 12824, 13740, 14840, 16030, 17808, 18320, 19236, 22260, 24045, 24274, 25648, 27480, 29680, 32060, 36411, 38472, 44520, 48090, 48548, 54960, 60685, 64120, 72822, 76944, 84959, 89040, 96180, 97096, 121370, 128240, 145644, 169918, 182055, 192360, 194192, 242740, 254877, 291288, 339836, 364110, 384720, 424795, 485480, 509754, 582576, 679672, 728220, 849590, 970960, 1019508, 1274385, 1359344, 1456440, 1699180, 2039016, 2548770, 2912880, 3398360, 4078032, 5097540, 6796720, 10195080, 20390160]

約数ペア:

[(1, 20390160), (2, 10195080), (3, 6796720), (4, 5097540), (5, 4078032), (6, 3398360), (7, 2912880), (8, 2548770), (10, 2039016), (12, 1699180), (14, 1456440), (15, 1359344), (16, 1274385), (20, 1019508), (21, 970960), (24, 849590), (28, 728220), (30, 679672), (35, 582576), (40, 509754), (42, 485480), (48, 424795), (53, 384720), (56, 364110), (60, 339836), (70, 291288), (80, 254877), (84, 242740), (105, 194192), (106, 192360), (112, 182055), (120, 169918), (140, 145644), (159, 128240), (168, 121370), (210, 97096), (212, 96180), (229, 89040), (240, 84959), (265, 76944), (280, 72822), (318, 64120), (336, 60685), (371, 54960), (420, 48548), (424, 48090), (458, 44520), (530, 38472), (560, 36411), (636, 32060), (687, 29680), (742, 27480), (795, 25648), (840, 24274), (848, 24045), (916, 22260), (1060, 19236), (1113, 18320), (1145, 17808), (1272, 16030), (1374, 14840), (1484, 13740), (1590, 12824), (1603, 12720), (1680, 12137), (1832, 11130), (1855, 10992), (2120, 9618), (2226, 9160), (2290, 8904), (2544, 8015), (2748, 7420), (2968, 6870), (3180, 6412), (3206, 6360), (3435, 5936), (3664, 5565), (3710, 5496), (4240, 4809), (4452, 4580)]