19009900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2089}}^1$

素因数の和:2123

約数の個数: 72

約数和(自身を含む): 50795360

約数和(自身を除く): 31785460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2089, 2275, 4178, 4550, 8356, 9100, 10445, 14623, 20890, 27157, 29246, 41780, 52225, 54314, 58492, 73115, 104450, 108628, 135785, 146230, 190099, 208900, 271570, 292460, 365575, 380198, 543140, 678925, 731150, 760396, 950495, 1357850, 1462300, 1900990, 2715700, 3801980, 4752475, 9504950, 19009900]

約数ペア:

[(1, 19009900), (2, 9504950), (4, 4752475), (5, 3801980), (7, 2715700), (10, 1900990), (13, 1462300), (14, 1357850), (20, 950495), (25, 760396), (26, 731150), (28, 678925), (35, 543140), (50, 380198), (52, 365575), (65, 292460), (70, 271570), (91, 208900), (100, 190099), (130, 146230), (140, 135785), (175, 108628), (182, 104450), (260, 73115), (325, 58492), (350, 54314), (364, 52225), (455, 41780), (650, 29246), (700, 27157), (910, 20890), (1300, 14623), (1820, 10445), (2089, 9100), (2275, 8356), (4178, 4550)]