140007980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18869}}^1$

素因数の和:18938

約数の個数: 48

約数和(自身を含む): 342377280

約数和(自身を除く): 202369300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 18869, 37738, 75476, 94345, 132083, 188690, 264166, 377380, 528332, 660415, 1000057, 1320830, 2000114, 2641660, 4000228, 5000285, 7000399, 10000570, 14000798, 20001140, 28001596, 35001995, 70003990, 140007980]

約数ペア:

[(1, 140007980), (2, 70003990), (4, 35001995), (5, 28001596), (7, 20001140), (10, 14000798), (14, 10000570), (20, 7000399), (28, 5000285), (35, 4000228), (53, 2641660), (70, 2000114), (106, 1320830), (140, 1000057), (212, 660415), (265, 528332), (371, 377380), (530, 264166), (742, 188690), (1060, 132083), (1484, 94345), (1855, 75476), (3710, 37738), (7420, 18869)]