7419820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 16722720

約数和(自身を除く): 9302900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 157, 170, 278, 314, 340, 556, 628, 695, 785, 1390, 1570, 2363, 2669, 2780, 3140, 4726, 5338, 9452, 10676, 11815, 13345, 21823, 23630, 26690, 43646, 47260, 53380, 87292, 109115, 218230, 370991, 436460, 741982, 1483964, 1854955, 3709910, 7419820]

約数ペア:

[(1, 7419820), (2, 3709910), (4, 1854955), (5, 1483964), (10, 741982), (17, 436460), (20, 370991), (34, 218230), (68, 109115), (85, 87292), (139, 53380), (157, 47260), (170, 43646), (278, 26690), (314, 23630), (340, 21823), (556, 13345), (628, 11815), (695, 10676), (785, 9452), (1390, 5338), (1570, 4726), (2363, 3140), (2669, 2780)]