249547520

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:402

約数の個数: 144

約数和(自身を含む): 651463680

約数和(自身を除く): 401916160

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, 304, 310, 320, 331, 380, 496, 589, 608, 620, 640, 662, 760, 992, 1178, 1216, 1240, 1280, 1324, 1520, 1655, 1984, 2356, 2432, 2480, 2648, 2945, 3040, 3310, 3968, 4712, 4864, 4960, 5296, 5890, 6080, 6289, 6620, 7936, 9424, 9920, 10261, 10592, 11780, 12160, 12578, 13240, 18848, 19840, 20522, 21184, 23560, 24320, 25156, 26480, 31445, 37696, 39680, 41044, 42368, 47120, 50312, 51305, 52960, 62890, 75392, 82088, 84736, 94240, 100624, 102610, 105920, 125780, 150784, 164176, 188480, 194959, 201248, 205220, 211840, 251560, 328352, 376960, 389918, 402496, 410440, 423680, 503120, 656704, 753920, 779836, 804992, 820880, 974795, 1006240, 1313408, 1559672, 1609984, 1641760, 1949590, 2012480, 2626816, 3119344, 3283520, 3899180, 4024960, 6238688, 6567040, 7798360, 8049920, 12477376, 13134080, 15596720, 24954752, 31193440, 49909504, 62386880, 124773760, 249547520]

約数ペア:

[(1, 249547520), (2, 124773760), (4, 62386880), (5, 49909504), (8, 31193440), (10, 24954752), (16, 15596720), (19, 13134080), (20, 12477376), (31, 8049920), (32, 7798360), (38, 6567040), (40, 6238688), (62, 4024960), (64, 3899180), (76, 3283520), (80, 3119344), (95, 2626816), (124, 2012480), (128, 1949590), (152, 1641760), (155, 1609984), (160, 1559672), (190, 1313408), (248, 1006240), (256, 974795), (304, 820880), (310, 804992), (320, 779836), (331, 753920), (380, 656704), (496, 503120), (589, 423680), (608, 410440), (620, 402496), (640, 389918), (662, 376960), (760, 328352), (992, 251560), (1178, 211840), (1216, 205220), (1240, 201248), (1280, 194959), (1324, 188480), (1520, 164176), (1655, 150784), (1984, 125780), (2356, 105920), (2432, 102610), (2480, 100624), (2648, 94240), (2945, 84736), (3040, 82088), (3310, 75392), (3968, 62890), (4712, 52960), (4864, 51305), (4960, 50312), (5296, 47120), (5890, 42368), (6080, 41044), (6289, 39680), (6620, 37696), (7936, 31445), (9424, 26480), (9920, 25156), (10261, 24320), (10592, 23560), (11780, 21184), (12160, 20522), (12578, 19840), (13240, 18848)]