21661440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5641}}^1$

素因数の和:5665

約数の個数: 72

約数和(自身を含む): 69193488

約数和(自身を除く): 47532048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5641, 11282, 16923, 22564, 28205, 33846, 45128, 56410, 67692, 84615, 90256, 112820, 135384, 169230, 180512, 225640, 270768, 338460, 361024, 451280, 541536, 676920, 722048, 902560, 1083072, 1353840, 1444096, 1805120, 2166144, 2707680, 3610240, 4332288, 5415360, 7220480, 10830720, 21661440]

約数ペア:

[(1, 21661440), (2, 10830720), (3, 7220480), (4, 5415360), (5, 4332288), (6, 3610240), (8, 2707680), (10, 2166144), (12, 1805120), (15, 1444096), (16, 1353840), (20, 1083072), (24, 902560), (30, 722048), (32, 676920), (40, 541536), (48, 451280), (60, 361024), (64, 338460), (80, 270768), (96, 225640), (120, 180512), (128, 169230), (160, 135384), (192, 112820), (240, 90256), (256, 84615), (320, 67692), (384, 56410), (480, 45128), (640, 33846), (768, 28205), (960, 22564), (1280, 16923), (1920, 11282), (3840, 5641)]