20890590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3209}}^1$

素因数の和:3257

約数の個数: 64

約数和(自身を含む): 59166720

約数和(自身を除く): 38276130

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3209, 3255, 6418, 6510, 9627, 16045, 19254, 22463, 32090, 44926, 48135, 67389, 96270, 99479, 112315, 134778, 198958, 224630, 298437, 336945, 497395, 596874, 673890, 696353, 994790, 1392706, 1492185, 2089059, 2984370, 3481765, 4178118, 6963530, 10445295, 20890590]

約数ペア:

[(1, 20890590), (2, 10445295), (3, 6963530), (5, 4178118), (6, 3481765), (7, 2984370), (10, 2089059), (14, 1492185), (15, 1392706), (21, 994790), (30, 696353), (31, 673890), (35, 596874), (42, 497395), (62, 336945), (70, 298437), (93, 224630), (105, 198958), (155, 134778), (186, 112315), (210, 99479), (217, 96270), (310, 67389), (434, 48135), (465, 44926), (651, 32090), (930, 22463), (1085, 19254), (1302, 16045), (2170, 9627), (3209, 6510), (3255, 6418)]