20761512975

素因数分解:

$3^5\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15749}}^1$

素因数の和:15812

約数の個数: 144

約数和(自身を含む): 45497088000

約数和(自身を除く): 24735575025

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 31, 35, 45, 63, 75, 81, 93, 105, 135, 155, 175, 189, 217, 225, 243, 279, 315, 405, 465, 525, 567, 651, 675, 775, 837, 945, 1085, 1215, 1395, 1575, 1701, 1953, 2025, 2325, 2511, 2835, 3255, 4185, 4725, 5425, 5859, 6075, 6975, 7533, 8505, 9765, 12555, 14175, 15749, 16275, 17577, 20925, 29295, 37665, 42525, 47247, 48825, 52731, 62775, 78745, 87885, 110243, 141741, 146475, 188325, 236235, 263655, 330729, 393725, 425223, 439425, 488219, 551215, 708705, 992187, 1181175, 1275669, 1318275, 1464657, 1653645, 2126115, 2441095, 2756075, 2976561, 3417533, 3543525, 3827007, 4393971, 4960935, 6378345, 7323285, 8268225, 8929683, 10252599, 10630575, 12205475, 13181913, 14882805, 17087665, 19135035, 21969855, 24804675, 26789049, 30757797, 31891725, 36616425, 39545739, 44648415, 51262995, 65909565, 74414025, 85438325, 92273391, 95675175, 109849275, 118637217, 133945245, 153788985, 197728695, 223242075, 256314975, 276820173, 329547825, 461366955, 593186085, 669726225, 768944925, 830460519, 988643475, 1384100865, 2306834775, 2965930425, 4152302595, 6920504325, 20761512975]

約数ペア:

[(1, 20761512975), (3, 6920504325), (5, 4152302595), (7, 2965930425), (9, 2306834775), (15, 1384100865), (21, 988643475), (25, 830460519), (27, 768944925), (31, 669726225), (35, 593186085), (45, 461366955), (63, 329547825), (75, 276820173), (81, 256314975), (93, 223242075), (105, 197728695), (135, 153788985), (155, 133945245), (175, 118637217), (189, 109849275), (217, 95675175), (225, 92273391), (243, 85438325), (279, 74414025), (315, 65909565), (405, 51262995), (465, 44648415), (525, 39545739), (567, 36616425), (651, 31891725), (675, 30757797), (775, 26789049), (837, 24804675), (945, 21969855), (1085, 19135035), (1215, 17087665), (1395, 14882805), (1575, 13181913), (1701, 12205475), (1953, 10630575), (2025, 10252599), (2325, 8929683), (2511, 8268225), (2835, 7323285), (3255, 6378345), (4185, 4960935), (4725, 4393971), (5425, 3827007), (5859, 3543525), (6075, 3417533), (6975, 2976561), (7533, 2756075), (8505, 2441095), (9765, 2126115), (12555, 1653645), (14175, 1464657), (15749, 1318275), (16275, 1275669), (17577, 1181175), (20925, 992187), (29295, 708705), (37665, 551215), (42525, 488219), (47247, 439425), (48825, 425223), (52731, 393725), (62775, 330729), (78745, 263655), (87885, 236235), (110243, 188325), (141741, 146475)]