128635020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{238213}}^1$

素因数の和:238231

約数の個数: 48

約数和(自身を含む): 400199520

約数和(自身を除く): 271564500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 238213, 476426, 714639, 952852, 1191065, 1429278, 2143917, 2382130, 2858556, 3573195, 4287834, 4764260, 6431751, 7146390, 8575668, 10719585, 12863502, 14292780, 21439170, 25727004, 32158755, 42878340, 64317510, 128635020]

約数ペア:

[(1, 128635020), (2, 64317510), (3, 42878340), (4, 32158755), (5, 25727004), (6, 21439170), (9, 14292780), (10, 12863502), (12, 10719585), (15, 8575668), (18, 7146390), (20, 6431751), (27, 4764260), (30, 4287834), (36, 3573195), (45, 2858556), (54, 2382130), (60, 2143917), (90, 1429278), (108, 1191065), (135, 952852), (180, 714639), (270, 476426), (540, 238213)]