20403840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10627}}^1$

素因数の和:10649

約数の個数: 64

約数和(自身を含む): 65043360

約数和(自身を除く): 44639520

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, 320, 384, 480, 640, 960, 1920, 10627, 21254, 31881, 42508, 53135, 63762, 85016, 106270, 127524, 159405, 170032, 212540, 255048, 318810, 340064, 425080, 510096, 637620, 680128, 850160, 1020192, 1275240, 1360256, 1700320, 2040384, 2550480, 3400640, 4080768, 5100960, 6801280, 10201920, 20403840]

約数ペア:

[(1, 20403840), (2, 10201920), (3, 6801280), (4, 5100960), (5, 4080768), (6, 3400640), (8, 2550480), (10, 2040384), (12, 1700320), (15, 1360256), (16, 1275240), (20, 1020192), (24, 850160), (30, 680128), (32, 637620), (40, 510096), (48, 425080), (60, 340064), (64, 318810), (80, 255048), (96, 212540), (120, 170032), (128, 159405), (160, 127524), (192, 106270), (240, 85016), (320, 63762), (384, 53135), (480, 42508), (640, 31881), (960, 21254), (1920, 10627)]