72465440

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6379}}^1$

素因数の和:6465

約数の個数: 48

約数和(自身を含む): 173638080

約数和(自身を除く): 101172640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 6379, 11360, 12758, 25516, 31895, 51032, 63790, 102064, 127580, 204128, 255160, 452909, 510320, 905818, 1020640, 1811636, 2264545, 3623272, 4529090, 7246544, 9058180, 14493088, 18116360, 36232720, 72465440]

約数ペア:

[(1, 72465440), (2, 36232720), (4, 18116360), (5, 14493088), (8, 9058180), (10, 7246544), (16, 4529090), (20, 3623272), (32, 2264545), (40, 1811636), (71, 1020640), (80, 905818), (142, 510320), (160, 452909), (284, 255160), (355, 204128), (568, 127580), (710, 102064), (1136, 63790), (1420, 51032), (2272, 31895), (2840, 25516), (5680, 12758), (6379, 11360)]