20956414275

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1423}}^1$

素因数の和:1566

約数の個数: 144

約数和(自身を含む): 40561272960

約数和(自身を除く): 19604858685

約数列:

[1, 3, 5, 9, 15, 25, 29, 37, 45, 61, 75, 87, 111, 145, 183, 185, 225, 261, 305, 333, 435, 549, 555, 725, 915, 925, 1073, 1305, 1423, 1525, 1665, 1769, 2175, 2257, 2745, 2775, 3219, 4269, 4575, 5307, 5365, 6525, 6771, 7115, 8325, 8845, 9657, 11285, 12807, 13725, 15921, 16095, 20313, 21345, 26535, 26825, 33855, 35575, 41267, 44225, 48285, 52651, 56425, 64035, 65453, 79605, 80475, 86803, 101565, 106725, 123801, 132675, 157953, 169275, 196359, 206335, 241425, 260409, 263255, 320175, 327265, 371403, 398025, 434015, 473859, 507825, 589077, 619005, 781227, 789765, 981795, 1031675, 1302045, 1316275, 1526879, 1636325, 1857015, 2170075, 2369295, 2517287, 2945385, 3095025, 3211711, 3906135, 3948825, 4580637, 4908975, 6510225, 7551861, 7634395, 9285075, 9635133, 11846475, 12586435, 13741911, 14726925, 16058555, 19530675, 22655583, 22903185, 28905399, 37759305, 38171975, 48175665, 62932175, 68709555, 80292775, 93139619, 113277915, 114515925, 144526995, 188796525, 240878325, 279418857, 343547775, 465698095, 566389575, 722634975, 838256571, 1397094285, 2328490475, 4191282855, 6985471425, 20956414275]

約数ペア:

[(1, 20956414275), (3, 6985471425), (5, 4191282855), (9, 2328490475), (15, 1397094285), (25, 838256571), (29, 722634975), (37, 566389575), (45, 465698095), (61, 343547775), (75, 279418857), (87, 240878325), (111, 188796525), (145, 144526995), (183, 114515925), (185, 113277915), (225, 93139619), (261, 80292775), (305, 68709555), (333, 62932175), (435, 48175665), (549, 38171975), (555, 37759305), (725, 28905399), (915, 22903185), (925, 22655583), (1073, 19530675), (1305, 16058555), (1423, 14726925), (1525, 13741911), (1665, 12586435), (1769, 11846475), (2175, 9635133), (2257, 9285075), (2745, 7634395), (2775, 7551861), (3219, 6510225), (4269, 4908975), (4575, 4580637), (5307, 3948825), (5365, 3906135), (6525, 3211711), (6771, 3095025), (7115, 2945385), (8325, 2517287), (8845, 2369295), (9657, 2170075), (11285, 1857015), (12807, 1636325), (13725, 1526879), (15921, 1316275), (16095, 1302045), (20313, 1031675), (21345, 981795), (26535, 789765), (26825, 781227), (33855, 619005), (35575, 589077), (41267, 507825), (44225, 473859), (48285, 434015), (52651, 398025), (56425, 371403), (64035, 327265), (65453, 320175), (79605, 263255), (80475, 260409), (86803, 241425), (101565, 206335), (106725, 196359), (123801, 169275), (132675, 157953)]