205421580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12541}}^1$

素因数の和:12576

約数の個数: 144

約数和(自身を含む): 766968384

約数和(自身を除く): 561546804

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5460, 8190, 12541, 16380, 25082, 37623, 50164, 62705, 75246, 87787, 112869, 125410, 150492, 163033, 175574, 188115, 225738, 250820, 263361, 326066, 351148, 376230, 438935, 451476, 489099, 526722, 564345, 652132, 752460, 790083, 815165, 877870, 978198, 1053444, 1128690, 1141231, 1316805, 1467297, 1580166, 1630330, 1755740, 1956396, 2257380, 2282462, 2445495, 2633610, 2934594, 3160332, 3260660, 3423693, 3950415, 4564924, 4890990, 5267220, 5706155, 5869188, 6847386, 7336485, 7900830, 9781980, 10271079, 11412310, 13694772, 14672970, 15801660, 17118465, 20542158, 22824620, 29345940, 34236930, 41084316, 51355395, 68473860, 102710790, 205421580]

約数ペア:

[(1, 205421580), (2, 102710790), (3, 68473860), (4, 51355395), (5, 41084316), (6, 34236930), (7, 29345940), (9, 22824620), (10, 20542158), (12, 17118465), (13, 15801660), (14, 14672970), (15, 13694772), (18, 11412310), (20, 10271079), (21, 9781980), (26, 7900830), (28, 7336485), (30, 6847386), (35, 5869188), (36, 5706155), (39, 5267220), (42, 4890990), (45, 4564924), (52, 3950415), (60, 3423693), (63, 3260660), (65, 3160332), (70, 2934594), (78, 2633610), (84, 2445495), (90, 2282462), (91, 2257380), (105, 1956396), (117, 1755740), (126, 1630330), (130, 1580166), (140, 1467297), (156, 1316805), (180, 1141231), (182, 1128690), (195, 1053444), (210, 978198), (234, 877870), (252, 815165), (260, 790083), (273, 752460), (315, 652132), (364, 564345), (390, 526722), (420, 489099), (455, 451476), (468, 438935), (546, 376230), (585, 351148), (630, 326066), (780, 263361), (819, 250820), (910, 225738), (1092, 188115), (1170, 175574), (1260, 163033), (1365, 150492), (1638, 125410), (1820, 112869), (2340, 87787), (2730, 75246), (3276, 62705), (4095, 50164), (5460, 37623), (8190, 25082), (12541, 16380)]