20187782800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{337}}^1\times {\mathrm{4831}}^1$

素因数の和:5217

約数の個数: 120

約数和(自身を含む): 50224658432

約数和(自身を除く): 30036875632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 337, 400, 496, 620, 674, 775, 1240, 1348, 1550, 1685, 2480, 2696, 3100, 3370, 4831, 5392, 6200, 6740, 8425, 9662, 10447, 12400, 13480, 16850, 19324, 20894, 24155, 26960, 33700, 38648, 41788, 48310, 52235, 67400, 77296, 83576, 96620, 104470, 120775, 134800, 149761, 167152, 193240, 208940, 241550, 261175, 299522, 386480, 417880, 483100, 522350, 599044, 748805, 835760, 966200, 1044700, 1198088, 1497610, 1628047, 1932400, 2089400, 2396176, 2995220, 3256094, 3744025, 4178800, 5990440, 6512188, 7488050, 8140235, 11980880, 13024376, 14976100, 16280470, 26048752, 29952200, 32560940, 40701175, 50469457, 59904400, 65121880, 81402350, 100938914, 130243760, 162804700, 201877828, 252347285, 325609400, 403755656, 504694570, 651218800, 807511312, 1009389140, 1261736425, 2018778280, 2523472850, 4037556560, 5046945700, 10093891400, 20187782800]

約数ペア:

[(1, 20187782800), (2, 10093891400), (4, 5046945700), (5, 4037556560), (8, 2523472850), (10, 2018778280), (16, 1261736425), (20, 1009389140), (25, 807511312), (31, 651218800), (40, 504694570), (50, 403755656), (62, 325609400), (80, 252347285), (100, 201877828), (124, 162804700), (155, 130243760), (200, 100938914), (248, 81402350), (310, 65121880), (337, 59904400), (400, 50469457), (496, 40701175), (620, 32560940), (674, 29952200), (775, 26048752), (1240, 16280470), (1348, 14976100), (1550, 13024376), (1685, 11980880), (2480, 8140235), (2696, 7488050), (3100, 6512188), (3370, 5990440), (4831, 4178800), (5392, 3744025), (6200, 3256094), (6740, 2995220), (8425, 2396176), (9662, 2089400), (10447, 1932400), (12400, 1628047), (13480, 1497610), (16850, 1198088), (19324, 1044700), (20894, 966200), (24155, 835760), (26960, 748805), (33700, 599044), (38648, 522350), (41788, 483100), (48310, 417880), (52235, 386480), (67400, 299522), (77296, 261175), (83576, 241550), (96620, 208940), (104470, 193240), (120775, 167152), (134800, 149761)]