64554400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:207

約数の個数: 144

約数和(自身を含む): 172488960

約数和(自身を除く): 107934560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 32, 38, 40, 50, 62, 76, 80, 95, 100, 124, 137, 152, 155, 160, 190, 200, 248, 274, 304, 310, 380, 400, 475, 496, 548, 589, 608, 620, 685, 760, 775, 800, 950, 992, 1096, 1178, 1240, 1370, 1520, 1550, 1900, 2192, 2356, 2480, 2603, 2740, 2945, 3040, 3100, 3425, 3800, 4247, 4384, 4712, 4960, 5206, 5480, 5890, 6200, 6850, 7600, 8494, 9424, 10412, 10960, 11780, 12400, 13015, 13700, 14725, 15200, 16988, 18848, 20824, 21235, 21920, 23560, 24800, 26030, 27400, 29450, 33976, 41648, 42470, 47120, 52060, 54800, 58900, 65075, 67952, 80693, 83296, 84940, 94240, 104120, 106175, 109600, 117800, 130150, 135904, 161386, 169880, 208240, 212350, 235600, 260300, 322772, 339760, 403465, 416480, 424700, 471200, 520600, 645544, 679520, 806930, 849400, 1041200, 1291088, 1613860, 1698800, 2017325, 2082400, 2582176, 3227720, 3397600, 4034650, 6455440, 8069300, 12910880, 16138600, 32277200, 64554400]

約数ペア:

[(1, 64554400), (2, 32277200), (4, 16138600), (5, 12910880), (8, 8069300), (10, 6455440), (16, 4034650), (19, 3397600), (20, 3227720), (25, 2582176), (31, 2082400), (32, 2017325), (38, 1698800), (40, 1613860), (50, 1291088), (62, 1041200), (76, 849400), (80, 806930), (95, 679520), (100, 645544), (124, 520600), (137, 471200), (152, 424700), (155, 416480), (160, 403465), (190, 339760), (200, 322772), (248, 260300), (274, 235600), (304, 212350), (310, 208240), (380, 169880), (400, 161386), (475, 135904), (496, 130150), (548, 117800), (589, 109600), (608, 106175), (620, 104120), (685, 94240), (760, 84940), (775, 83296), (800, 80693), (950, 67952), (992, 65075), (1096, 58900), (1178, 54800), (1240, 52060), (1370, 47120), (1520, 42470), (1550, 41648), (1900, 33976), (2192, 29450), (2356, 27400), (2480, 26030), (2603, 24800), (2740, 23560), (2945, 21920), (3040, 21235), (3100, 20824), (3425, 18848), (3800, 16988), (4247, 15200), (4384, 14725), (4712, 13700), (4960, 13015), (5206, 12400), (5480, 11780), (5890, 10960), (6200, 10412), (6850, 9424), (7600, 8494)]