153840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{641}}^1$

素因数の和:657

約数の個数: 40

約数和(自身を含む): 477648

約数和(自身を除く): 323808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 641, 1282, 1923, 2564, 3205, 3846, 5128, 6410, 7692, 9615, 10256, 12820, 15384, 19230, 25640, 30768, 38460, 51280, 76920, 153840]

約数ペア:

[(1, 153840), (2, 76920), (3, 51280), (4, 38460), (5, 30768), (6, 25640), (8, 19230), (10, 15384), (12, 12820), (15, 10256), (16, 9615), (20, 7692), (24, 6410), (30, 5128), (40, 3846), (48, 3205), (60, 2564), (80, 1923), (120, 1282), (240, 641)]