4221990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 11865600

約数和(自身を除く): 7643610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 823, 855, 1026, 1646, 1710, 2469, 2565, 4115, 4938, 5130, 7407, 8230, 12345, 14814, 15637, 22221, 24690, 31274, 37035, 44442, 46911, 74070, 78185, 93822, 111105, 140733, 156370, 222210, 234555, 281466, 422199, 469110, 703665, 844398, 1407330, 2110995, 4221990]

約数ペア:

[(1, 4221990), (2, 2110995), (3, 1407330), (5, 844398), (6, 703665), (9, 469110), (10, 422199), (15, 281466), (18, 234555), (19, 222210), (27, 156370), (30, 140733), (38, 111105), (45, 93822), (54, 78185), (57, 74070), (90, 46911), (95, 44442), (114, 37035), (135, 31274), (171, 24690), (190, 22221), (270, 15637), (285, 14814), (342, 12345), (513, 8230), (570, 7407), (823, 5130), (855, 4938), (1026, 4115), (1646, 2565), (1710, 2469)]