20440680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13103}}^1$

素因数の和:13130

約数の個数: 64

約数和(自身を含む): 66044160

約数和(自身を除く): 45603480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13103, 26206, 39309, 52412, 65515, 78618, 104824, 131030, 157236, 170339, 196545, 262060, 314472, 340678, 393090, 511017, 524120, 681356, 786180, 851695, 1022034, 1362712, 1572360, 1703390, 2044068, 2555085, 3406780, 4088136, 5110170, 6813560, 10220340, 20440680]

約数ペア:

[(1, 20440680), (2, 10220340), (3, 6813560), (4, 5110170), (5, 4088136), (6, 3406780), (8, 2555085), (10, 2044068), (12, 1703390), (13, 1572360), (15, 1362712), (20, 1022034), (24, 851695), (26, 786180), (30, 681356), (39, 524120), (40, 511017), (52, 393090), (60, 340678), (65, 314472), (78, 262060), (104, 196545), (120, 170339), (130, 157236), (156, 131030), (195, 104824), (260, 78618), (312, 65515), (390, 52412), (520, 39309), (780, 26206), (1560, 13103)]