201912145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 288921600

約数和(自身を除く): 87009455

約数列:

[1, 5, 17, 19, 31, 37, 85, 95, 109, 155, 185, 323, 527, 545, 589, 629, 703, 1147, 1615, 1853, 2071, 2635, 2945, 3145, 3379, 3515, 4033, 5735, 9265, 10013, 10355, 11951, 16895, 19499, 20165, 21793, 35207, 50065, 57443, 59755, 64201, 68561, 76627, 97495, 108965, 125023, 176035, 287215, 321005, 342805, 370481, 383135, 625115, 1091417, 1302659, 1852405, 2125391, 2375437, 5457085, 6513295, 10626955, 11877185, 40382429, 201912145]

約数ペア:

[(1, 201912145), (5, 40382429), (17, 11877185), (19, 10626955), (31, 6513295), (37, 5457085), (85, 2375437), (95, 2125391), (109, 1852405), (155, 1302659), (185, 1091417), (323, 625115), (527, 383135), (545, 370481), (589, 342805), (629, 321005), (703, 287215), (1147, 176035), (1615, 125023), (1853, 108965), (2071, 97495), (2635, 76627), (2945, 68561), (3145, 64201), (3379, 59755), (3515, 57443), (4033, 50065), (5735, 35207), (9265, 21793), (10013, 20165), (10355, 19499), (11951, 16895)]