290120320

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2146

約数の個数: 128

約数和(自身を含む): 818611200

約数和(自身を除く): 528490880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1984, 2089, 2170, 2240, 2480, 3472, 3968, 4178, 4340, 4480, 4960, 6944, 8356, 8680, 9920, 10445, 13888, 14623, 16712, 17360, 19840, 20890, 27776, 29246, 33424, 34720, 41780, 58492, 64759, 66848, 69440, 73115, 83560, 116984, 129518, 133696, 138880, 146230, 167120, 233968, 259036, 267392, 292460, 323795, 334240, 453313, 467936, 518072, 584920, 647590, 668480, 906626, 935872, 1036144, 1169840, 1295180, 1336960, 1813252, 1871744, 2072288, 2266565, 2339680, 2590360, 3626504, 4144576, 4533130, 4679360, 5180720, 7253008, 8289152, 9066260, 9358720, 10361440, 14506016, 18132520, 20722880, 29012032, 36265040, 41445760, 58024064, 72530080, 145060160, 290120320]

約数ペア:

[(1, 290120320), (2, 145060160), (4, 72530080), (5, 58024064), (7, 41445760), (8, 36265040), (10, 29012032), (14, 20722880), (16, 18132520), (20, 14506016), (28, 10361440), (31, 9358720), (32, 9066260), (35, 8289152), (40, 7253008), (56, 5180720), (62, 4679360), (64, 4533130), (70, 4144576), (80, 3626504), (112, 2590360), (124, 2339680), (128, 2266565), (140, 2072288), (155, 1871744), (160, 1813252), (217, 1336960), (224, 1295180), (248, 1169840), (280, 1036144), (310, 935872), (320, 906626), (434, 668480), (448, 647590), (496, 584920), (560, 518072), (620, 467936), (640, 453313), (868, 334240), (896, 323795), (992, 292460), (1085, 267392), (1120, 259036), (1240, 233968), (1736, 167120), (1984, 146230), (2089, 138880), (2170, 133696), (2240, 129518), (2480, 116984), (3472, 83560), (3968, 73115), (4178, 69440), (4340, 66848), (4480, 64759), (4960, 58492), (6944, 41780), (8356, 34720), (8680, 33424), (9920, 29246), (10445, 27776), (13888, 20890), (14623, 19840), (16712, 17360)]