80890180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1399}}^1$

素因数の和:1481

約数の個数: 72

約数和(自身を含む): 201096000

約数和(自身を除く): 120205820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 140, 196, 236, 245, 295, 413, 490, 590, 826, 980, 1180, 1399, 1652, 2065, 2798, 2891, 4130, 5596, 5782, 6995, 8260, 9793, 11564, 13990, 14455, 19586, 27980, 28910, 39172, 48965, 57820, 68551, 82541, 97930, 137102, 165082, 195860, 274204, 330164, 342755, 412705, 577787, 685510, 825410, 1155574, 1371020, 1650820, 2311148, 2888935, 4044509, 5777870, 8089018, 11555740, 16178036, 20222545, 40445090, 80890180]

約数ペア:

[(1, 80890180), (2, 40445090), (4, 20222545), (5, 16178036), (7, 11555740), (10, 8089018), (14, 5777870), (20, 4044509), (28, 2888935), (35, 2311148), (49, 1650820), (59, 1371020), (70, 1155574), (98, 825410), (118, 685510), (140, 577787), (196, 412705), (236, 342755), (245, 330164), (295, 274204), (413, 195860), (490, 165082), (590, 137102), (826, 97930), (980, 82541), (1180, 68551), (1399, 57820), (1652, 48965), (2065, 39172), (2798, 28910), (2891, 27980), (4130, 19586), (5596, 14455), (5782, 13990), (6995, 11564), (8260, 9793)]