211851520

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 553351680

約数和(自身を除く): 341500160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 248, 256, 281, 304, 310, 320, 380, 496, 562, 589, 608, 620, 640, 760, 992, 1124, 1178, 1216, 1240, 1280, 1405, 1520, 1984, 2248, 2356, 2432, 2480, 2810, 2945, 3040, 3968, 4496, 4712, 4864, 4960, 5339, 5620, 5890, 6080, 7936, 8711, 8992, 9424, 9920, 10678, 11240, 11780, 12160, 17422, 17984, 18848, 19840, 21356, 22480, 23560, 24320, 26695, 34844, 35968, 37696, 39680, 42712, 43555, 44960, 47120, 53390, 69688, 71936, 75392, 85424, 87110, 89920, 94240, 106780, 139376, 150784, 165509, 170848, 174220, 179840, 188480, 213560, 278752, 331018, 341696, 348440, 359680, 376960, 427120, 557504, 662036, 683392, 696880, 753920, 827545, 854240, 1115008, 1324072, 1366784, 1393760, 1655090, 1708480, 2230016, 2648144, 2787520, 3310180, 3416960, 5296288, 5575040, 6620360, 6833920, 10592576, 11150080, 13240720, 21185152, 26481440, 42370304, 52962880, 105925760, 211851520]

約数ペア:

[(1, 211851520), (2, 105925760), (4, 52962880), (5, 42370304), (8, 26481440), (10, 21185152), (16, 13240720), (19, 11150080), (20, 10592576), (31, 6833920), (32, 6620360), (38, 5575040), (40, 5296288), (62, 3416960), (64, 3310180), (76, 2787520), (80, 2648144), (95, 2230016), (124, 1708480), (128, 1655090), (152, 1393760), (155, 1366784), (160, 1324072), (190, 1115008), (248, 854240), (256, 827545), (281, 753920), (304, 696880), (310, 683392), (320, 662036), (380, 557504), (496, 427120), (562, 376960), (589, 359680), (608, 348440), (620, 341696), (640, 331018), (760, 278752), (992, 213560), (1124, 188480), (1178, 179840), (1216, 174220), (1240, 170848), (1280, 165509), (1405, 150784), (1520, 139376), (1984, 106780), (2248, 94240), (2356, 89920), (2432, 87110), (2480, 85424), (2810, 75392), (2945, 71936), (3040, 69688), (3968, 53390), (4496, 47120), (4712, 44960), (4864, 43555), (4960, 42712), (5339, 39680), (5620, 37696), (5890, 35968), (6080, 34844), (7936, 26695), (8711, 24320), (8992, 23560), (9424, 22480), (9920, 21356), (10678, 19840), (11240, 18848), (11780, 17984), (12160, 17422)]