80856320

素因数分解:

$2^8\times 5^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 195304200

約数和(自身を除く): 114447880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 320, 349, 362, 640, 698, 724, 905, 1280, 1396, 1448, 1745, 1810, 2792, 2896, 3490, 3620, 5584, 5792, 6980, 7240, 11168, 11584, 13960, 14480, 22336, 23168, 27920, 28960, 44672, 46336, 55840, 57920, 63169, 89344, 111680, 115840, 126338, 223360, 231680, 252676, 315845, 446720, 505352, 631690, 1010704, 1263380, 2021408, 2526760, 4042816, 5053520, 8085632, 10107040, 16171264, 20214080, 40428160, 80856320]

約数ペア:

[(1, 80856320), (2, 40428160), (4, 20214080), (5, 16171264), (8, 10107040), (10, 8085632), (16, 5053520), (20, 4042816), (32, 2526760), (40, 2021408), (64, 1263380), (80, 1010704), (128, 631690), (160, 505352), (181, 446720), (256, 315845), (320, 252676), (349, 231680), (362, 223360), (640, 126338), (698, 115840), (724, 111680), (905, 89344), (1280, 63169), (1396, 57920), (1448, 55840), (1745, 46336), (1810, 44672), (2792, 28960), (2896, 27920), (3490, 23168), (3620, 22336), (5584, 14480), (5792, 13960), (6980, 11584), (7240, 11168)]