128679804520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{60698021}}^1$

素因数の和:60698085

約数の個数: 32

約数和(自身を含む): 294992386920

約数和(自身を除く): 166312582400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 60698021, 121396042, 242792084, 303490105, 485584168, 606980210, 1213960420, 2427920840, 3216995113, 6433990226, 12867980452, 16084975565, 25735960904, 32169951130, 64339902260, 128679804520]

約数ペア:

[(1, 128679804520), (2, 64339902260), (4, 32169951130), (5, 25735960904), (8, 16084975565), (10, 12867980452), (20, 6433990226), (40, 3216995113), (53, 2427920840), (106, 1213960420), (212, 606980210), (265, 485584168), (424, 303490105), (530, 242792084), (1060, 121396042), (2120, 60698021)]