68971280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 160

約数和(自身を含む): 197130240

約数和(自身を除く): 128158960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 80, 112, 116, 124, 137, 140, 145, 155, 203, 217, 232, 248, 274, 280, 290, 310, 406, 434, 464, 496, 548, 560, 580, 620, 685, 812, 868, 899, 959, 1015, 1085, 1096, 1160, 1240, 1370, 1624, 1736, 1798, 1918, 2030, 2170, 2192, 2320, 2480, 2740, 3248, 3472, 3596, 3836, 3973, 4060, 4247, 4340, 4495, 4795, 5480, 6293, 7192, 7672, 7946, 8120, 8494, 8680, 8990, 9590, 10960, 12586, 14384, 15344, 15892, 16240, 16988, 17360, 17980, 19180, 19865, 21235, 25172, 27811, 29729, 31465, 31784, 33976, 35960, 38360, 39730, 42470, 50344, 55622, 59458, 62930, 63568, 67952, 71920, 76720, 79460, 84940, 100688, 111244, 118916, 123163, 125860, 139055, 148645, 158920, 169880, 222488, 237832, 246326, 251720, 278110, 297290, 317840, 339760, 444976, 475664, 492652, 503440, 556220, 594580, 615815, 862141, 985304, 1112440, 1189160, 1231630, 1724282, 1970608, 2224880, 2378320, 2463260, 3448564, 4310705, 4926520, 6897128, 8621410, 9853040, 13794256, 17242820, 34485640, 68971280]

約数ペア:

[(1, 68971280), (2, 34485640), (4, 17242820), (5, 13794256), (7, 9853040), (8, 8621410), (10, 6897128), (14, 4926520), (16, 4310705), (20, 3448564), (28, 2463260), (29, 2378320), (31, 2224880), (35, 1970608), (40, 1724282), (56, 1231630), (58, 1189160), (62, 1112440), (70, 985304), (80, 862141), (112, 615815), (116, 594580), (124, 556220), (137, 503440), (140, 492652), (145, 475664), (155, 444976), (203, 339760), (217, 317840), (232, 297290), (248, 278110), (274, 251720), (280, 246326), (290, 237832), (310, 222488), (406, 169880), (434, 158920), (464, 148645), (496, 139055), (548, 125860), (560, 123163), (580, 118916), (620, 111244), (685, 100688), (812, 84940), (868, 79460), (899, 76720), (959, 71920), (1015, 67952), (1085, 63568), (1096, 62930), (1160, 59458), (1240, 55622), (1370, 50344), (1624, 42470), (1736, 39730), (1798, 38360), (1918, 35960), (2030, 33976), (2170, 31784), (2192, 31465), (2320, 29729), (2480, 27811), (2740, 25172), (3248, 21235), (3472, 19865), (3596, 19180), (3836, 17980), (3973, 17360), (4060, 16988), (4247, 16240), (4340, 15892), (4495, 15344), (4795, 14384), (5480, 12586), (6293, 10960), (7192, 9590), (7672, 8990), (7946, 8680), (8120, 8494)]