20165963120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13267081}}^1$

素因数の和:13267113

約数の個数: 40

約数和(自身を含む): 49353545040

約数和(自身を除く): 29187581920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13267081, 26534162, 53068324, 66335405, 106136648, 132670810, 212273296, 252074539, 265341620, 504149078, 530683240, 1008298156, 1061366480, 1260372695, 2016596312, 2520745390, 4033192624, 5041490780, 10082981560, 20165963120]

約数ペア:

[(1, 20165963120), (2, 10082981560), (4, 5041490780), (5, 4033192624), (8, 2520745390), (10, 2016596312), (16, 1260372695), (19, 1061366480), (20, 1008298156), (38, 530683240), (40, 504149078), (76, 265341620), (80, 252074539), (95, 212273296), (152, 132670810), (190, 106136648), (304, 66335405), (380, 53068324), (760, 26534162), (1520, 13267081)]