212820615

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:488

約数の個数: 112

約数和(自身を含む): 461683200

約数和(自身を除く): 248862585

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 81, 95, 105, 133, 135, 171, 189, 243, 285, 315, 399, 405, 439, 513, 567, 665, 729, 855, 945, 1197, 1215, 1317, 1539, 1701, 1995, 2195, 2565, 2835, 3073, 3591, 3645, 3951, 4617, 5103, 5985, 6585, 7695, 8341, 8505, 9219, 10773, 11853, 13851, 15365, 17955, 19755, 23085, 25023, 25515, 27657, 32319, 35559, 41705, 46095, 53865, 58387, 59265, 69255, 75069, 82971, 96957, 106677, 125115, 138285, 161595, 175161, 177795, 225207, 248913, 291935, 320031, 375345, 414855, 484785, 525483, 533385, 675621, 746739, 875805, 1126035, 1244565, 1576449, 1600155, 2026863, 2240217, 2627415, 3378105, 3733695, 4729347, 6080589, 7882245, 10134315, 11201085, 14188041, 23646735, 30402945, 42564123, 70940205, 212820615]

約数ペア:

[(1, 212820615), (3, 70940205), (5, 42564123), (7, 30402945), (9, 23646735), (15, 14188041), (19, 11201085), (21, 10134315), (27, 7882245), (35, 6080589), (45, 4729347), (57, 3733695), (63, 3378105), (81, 2627415), (95, 2240217), (105, 2026863), (133, 1600155), (135, 1576449), (171, 1244565), (189, 1126035), (243, 875805), (285, 746739), (315, 675621), (399, 533385), (405, 525483), (439, 484785), (513, 414855), (567, 375345), (665, 320031), (729, 291935), (855, 248913), (945, 225207), (1197, 177795), (1215, 175161), (1317, 161595), (1539, 138285), (1701, 125115), (1995, 106677), (2195, 96957), (2565, 82971), (2835, 75069), (3073, 69255), (3591, 59265), (3645, 58387), (3951, 53865), (4617, 46095), (5103, 41705), (5985, 35559), (6585, 32319), (7695, 27657), (8341, 25515), (8505, 25023), (9219, 23085), (10773, 19755), (11853, 17955), (13851, 15365)]