19987680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{41641}}^1$

素因数の和:41659

約数の個数: 48

約数和(自身を含む): 62962704

約数和(自身を除く): 42975024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 41641, 83282, 124923, 166564, 208205, 249846, 333128, 416410, 499692, 624615, 666256, 832820, 999384, 1249230, 1332512, 1665640, 1998768, 2498460, 3331280, 3997536, 4996920, 6662560, 9993840, 19987680]

約数ペア:

[(1, 19987680), (2, 9993840), (3, 6662560), (4, 4996920), (5, 3997536), (6, 3331280), (8, 2498460), (10, 1998768), (12, 1665640), (15, 1332512), (16, 1249230), (20, 999384), (24, 832820), (30, 666256), (32, 624615), (40, 499692), (48, 416410), (60, 333128), (80, 249846), (96, 208205), (120, 166564), (160, 124923), (240, 83282), (480, 41641)]