199813690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:767

約数の個数: 64

約数和(自身を含む): 398471040

約数和(自身を除く): 198657350

約数列:

[1, 2, 5, 10, 19, 37, 38, 43, 74, 86, 95, 185, 190, 215, 370, 430, 661, 703, 817, 1322, 1406, 1591, 1634, 3182, 3305, 3515, 4085, 6610, 7030, 7955, 8170, 12559, 15910, 24457, 25118, 28423, 30229, 48914, 56846, 60458, 62795, 122285, 125590, 142115, 151145, 244570, 284230, 302290, 464683, 540037, 929366, 1051651, 1080074, 2103302, 2323415, 2700185, 4646830, 5258255, 5400370, 10516510, 19981369, 39962738, 99906845, 199813690]

約数ペア:

[(1, 199813690), (2, 99906845), (5, 39962738), (10, 19981369), (19, 10516510), (37, 5400370), (38, 5258255), (43, 4646830), (74, 2700185), (86, 2323415), (95, 2103302), (185, 1080074), (190, 1051651), (215, 929366), (370, 540037), (430, 464683), (661, 302290), (703, 284230), (817, 244570), (1322, 151145), (1406, 142115), (1591, 125590), (1634, 122285), (3182, 62795), (3305, 60458), (3515, 56846), (4085, 48914), (6610, 30229), (7030, 28423), (7955, 25118), (8170, 24457), (12559, 15910)]