12881120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 144

約数和(自身を含む): 37231488

約数和(自身を除く): 24350368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 53, 56, 62, 70, 80, 98, 106, 112, 124, 140, 155, 160, 196, 212, 217, 224, 245, 248, 265, 280, 310, 371, 392, 424, 434, 490, 496, 530, 560, 620, 742, 784, 848, 868, 980, 992, 1060, 1085, 1120, 1240, 1484, 1519, 1568, 1643, 1696, 1736, 1855, 1960, 2120, 2170, 2480, 2597, 2968, 3038, 3286, 3472, 3710, 3920, 4240, 4340, 4960, 5194, 5936, 6076, 6572, 6944, 7420, 7595, 7840, 8215, 8480, 8680, 10388, 11501, 11872, 12152, 12985, 13144, 14840, 15190, 16430, 17360, 20776, 23002, 24304, 25970, 26288, 29680, 30380, 32860, 34720, 41552, 46004, 48608, 51940, 52576, 57505, 59360, 60760, 65720, 80507, 83104, 92008, 103880, 115010, 121520, 131440, 161014, 184016, 207760, 230020, 243040, 262880, 322028, 368032, 402535, 415520, 460040, 644056, 805070, 920080, 1288112, 1610140, 1840160, 2576224, 3220280, 6440560, 12881120]

約数ペア:

[(1, 12881120), (2, 6440560), (4, 3220280), (5, 2576224), (7, 1840160), (8, 1610140), (10, 1288112), (14, 920080), (16, 805070), (20, 644056), (28, 460040), (31, 415520), (32, 402535), (35, 368032), (40, 322028), (49, 262880), (53, 243040), (56, 230020), (62, 207760), (70, 184016), (80, 161014), (98, 131440), (106, 121520), (112, 115010), (124, 103880), (140, 92008), (155, 83104), (160, 80507), (196, 65720), (212, 60760), (217, 59360), (224, 57505), (245, 52576), (248, 51940), (265, 48608), (280, 46004), (310, 41552), (371, 34720), (392, 32860), (424, 30380), (434, 29680), (490, 26288), (496, 25970), (530, 24304), (560, 23002), (620, 20776), (742, 17360), (784, 16430), (848, 15190), (868, 14840), (980, 13144), (992, 12985), (1060, 12152), (1085, 11872), (1120, 11501), (1240, 10388), (1484, 8680), (1519, 8480), (1568, 8215), (1643, 7840), (1696, 7595), (1736, 7420), (1855, 6944), (1960, 6572), (2120, 6076), (2170, 5936), (2480, 5194), (2597, 4960), (2968, 4340), (3038, 4240), (3286, 3920), (3472, 3710)]