12910880

素因数分解:

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

素因数の和:202

約数の個数: 96

約数和(自身を含む): 33384960

約数和(自身を除く): 20474080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 124, 137, 152, 155, 160, 190, 248, 274, 304, 310, 380, 496, 548, 589, 608, 620, 685, 760, 992, 1096, 1178, 1240, 1370, 1520, 2192, 2356, 2480, 2603, 2740, 2945, 3040, 4247, 4384, 4712, 4960, 5206, 5480, 5890, 8494, 9424, 10412, 10960, 11780, 13015, 16988, 18848, 20824, 21235, 21920, 23560, 26030, 33976, 41648, 42470, 47120, 52060, 67952, 80693, 83296, 84940, 94240, 104120, 135904, 161386, 169880, 208240, 322772, 339760, 403465, 416480, 645544, 679520, 806930, 1291088, 1613860, 2582176, 3227720, 6455440, 12910880]

約数ペア:

[(1, 12910880), (2, 6455440), (4, 3227720), (5, 2582176), (8, 1613860), (10, 1291088), (16, 806930), (19, 679520), (20, 645544), (31, 416480), (32, 403465), (38, 339760), (40, 322772), (62, 208240), (76, 169880), (80, 161386), (95, 135904), (124, 104120), (137, 94240), (152, 84940), (155, 83296), (160, 80693), (190, 67952), (248, 52060), (274, 47120), (304, 42470), (310, 41648), (380, 33976), (496, 26030), (548, 23560), (589, 21920), (608, 21235), (620, 20824), (685, 18848), (760, 16988), (992, 13015), (1096, 11780), (1178, 10960), (1240, 10412), (1370, 9424), (1520, 8494), (2192, 5890), (2356, 5480), (2480, 5206), (2603, 4960), (2740, 4712), (2945, 4384), (3040, 4247)]