64756420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{359}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 141523200

約数和(自身を除く): 76766780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 311, 359, 580, 622, 718, 1244, 1436, 1555, 1795, 3110, 3590, 6220, 7180, 9019, 10411, 18038, 20822, 36076, 41644, 45095, 52055, 90190, 104110, 111649, 180380, 208220, 223298, 446596, 558245, 1116490, 2232980, 3237821, 6475642, 12951284, 16189105, 32378210, 64756420]

約数ペア:

[(1, 64756420), (2, 32378210), (4, 16189105), (5, 12951284), (10, 6475642), (20, 3237821), (29, 2232980), (58, 1116490), (116, 558245), (145, 446596), (290, 223298), (311, 208220), (359, 180380), (580, 111649), (622, 104110), (718, 90190), (1244, 52055), (1436, 45095), (1555, 41644), (1795, 36076), (3110, 20822), (3590, 18038), (6220, 10411), (7180, 9019)]