1821981260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1\times {\mathrm{809}}^1$

素因数の和:1211

約数の個数: 96

約数和(自身を含む): 4335508800

約数和(自身を除く): 2513527540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 353, 580, 638, 706, 809, 1276, 1412, 1595, 1618, 1765, 3190, 3236, 3530, 3883, 4045, 6380, 7060, 7766, 8090, 8899, 10237, 15532, 16180, 17798, 19415, 20474, 23461, 35596, 38830, 40948, 44495, 46922, 51185, 77660, 88990, 93844, 102370, 112607, 117305, 177980, 204740, 225214, 234610, 258071, 285577, 450428, 469220, 516142, 563035, 571154, 1032284, 1126070, 1142308, 1290355, 1427885, 2252140, 2580710, 2855770, 3141347, 5161420, 5711540, 6282694, 8281733, 12565388, 15706735, 16563466, 31413470, 33126932, 41408665, 62826940, 82817330, 91099063, 165634660, 182198126, 364396252, 455495315, 910990630, 1821981260]

約数ペア:

[(1, 1821981260), (2, 910990630), (4, 455495315), (5, 364396252), (10, 182198126), (11, 165634660), (20, 91099063), (22, 82817330), (29, 62826940), (44, 41408665), (55, 33126932), (58, 31413470), (110, 16563466), (116, 15706735), (145, 12565388), (220, 8281733), (290, 6282694), (319, 5711540), (353, 5161420), (580, 3141347), (638, 2855770), (706, 2580710), (809, 2252140), (1276, 1427885), (1412, 1290355), (1595, 1142308), (1618, 1126070), (1765, 1032284), (3190, 571154), (3236, 563035), (3530, 516142), (3883, 469220), (4045, 450428), (6380, 285577), (7060, 258071), (7766, 234610), (8090, 225214), (8899, 204740), (10237, 177980), (15532, 117305), (16180, 112607), (17798, 102370), (19415, 93844), (20474, 88990), (23461, 77660), (35596, 51185), (38830, 46922), (40948, 44495)]