20334275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 29685600

約数和(自身を除く): 9351325

約数列:

[1, 5, 13, 19, 25, 37, 65, 89, 95, 185, 247, 325, 445, 475, 481, 703, 925, 1157, 1235, 1691, 2225, 2405, 3293, 3515, 5785, 6175, 8455, 9139, 12025, 16465, 17575, 21983, 28925, 42275, 42809, 45695, 62567, 82325, 109915, 214045, 228475, 312835, 549575, 813371, 1070225, 1564175, 4066855, 20334275]

約数ペア:

[(1, 20334275), (5, 4066855), (13, 1564175), (19, 1070225), (25, 813371), (37, 549575), (65, 312835), (89, 228475), (95, 214045), (185, 109915), (247, 82325), (325, 62567), (445, 45695), (475, 42809), (481, 42275), (703, 28925), (925, 21983), (1157, 17575), (1235, 16465), (1691, 12025), (2225, 9139), (2405, 8455), (3293, 6175), (3515, 5785)]