1918840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 5540400

約数和(自身を除く): 3621560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 89, 98, 110, 140, 154, 178, 196, 220, 245, 280, 308, 356, 385, 392, 440, 445, 490, 539, 616, 623, 712, 770, 890, 979, 980, 1078, 1246, 1540, 1780, 1958, 1960, 2156, 2492, 2695, 3080, 3115, 3560, 3916, 4312, 4361, 4895, 4984, 5390, 6230, 6853, 7832, 8722, 9790, 10780, 12460, 13706, 17444, 19580, 21560, 21805, 24920, 27412, 34265, 34888, 39160, 43610, 47971, 54824, 68530, 87220, 95942, 137060, 174440, 191884, 239855, 274120, 383768, 479710, 959420, 1918840]

約数ペア:

[(1, 1918840), (2, 959420), (4, 479710), (5, 383768), (7, 274120), (8, 239855), (10, 191884), (11, 174440), (14, 137060), (20, 95942), (22, 87220), (28, 68530), (35, 54824), (40, 47971), (44, 43610), (49, 39160), (55, 34888), (56, 34265), (70, 27412), (77, 24920), (88, 21805), (89, 21560), (98, 19580), (110, 17444), (140, 13706), (154, 12460), (178, 10780), (196, 9790), (220, 8722), (245, 7832), (280, 6853), (308, 6230), (356, 5390), (385, 4984), (392, 4895), (440, 4361), (445, 4312), (490, 3916), (539, 3560), (616, 3115), (623, 3080), (712, 2695), (770, 2492), (890, 2156), (979, 1960), (980, 1958), (1078, 1780), (1246, 1540)]