90625220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4657}}^1$

素因数の和:4812

約数の個数: 48

約数和(自身を含む): 219112320

約数和(自身を除く): 128487100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4657, 4865, 9314, 9730, 18628, 19460, 23285, 32599, 46570, 65198, 93140, 130396, 162995, 325990, 647323, 651980, 1294646, 2589292, 3236615, 4531261, 6473230, 9062522, 12946460, 18125044, 22656305, 45312610, 90625220]

約数ペア:

[(1, 90625220), (2, 45312610), (4, 22656305), (5, 18125044), (7, 12946460), (10, 9062522), (14, 6473230), (20, 4531261), (28, 3236615), (35, 2589292), (70, 1294646), (139, 651980), (140, 647323), (278, 325990), (556, 162995), (695, 130396), (973, 93140), (1390, 65198), (1946, 46570), (2780, 32599), (3892, 23285), (4657, 19460), (4865, 18628), (9314, 9730)]