19509850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 38497536

約数和(自身を除く): 18987686

約数列:

[1, 2, 5, 10, 25, 31, 41, 50, 62, 82, 155, 205, 307, 310, 410, 614, 775, 1025, 1271, 1535, 1550, 2050, 2542, 3070, 6355, 7675, 9517, 12587, 12710, 15350, 19034, 25174, 31775, 47585, 62935, 63550, 95170, 125870, 237925, 314675, 390197, 475850, 629350, 780394, 1950985, 3901970, 9754925, 19509850]

約数ペア:

[(1, 19509850), (2, 9754925), (5, 3901970), (10, 1950985), (25, 780394), (31, 629350), (41, 475850), (50, 390197), (62, 314675), (82, 237925), (155, 125870), (205, 95170), (307, 63550), (310, 62935), (410, 47585), (614, 31775), (775, 25174), (1025, 19034), (1271, 15350), (1535, 12710), (1550, 12587), (2050, 9517), (2542, 7675), (3070, 6355)]