20996856140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1432

約数の個数: 192

約数和(自身を含む): 51263815680

約数和(自身を除く): 30266959540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 43, 47, 52, 62, 65, 86, 94, 124, 130, 155, 172, 188, 215, 235, 260, 310, 403, 430, 470, 559, 611, 620, 806, 860, 940, 1118, 1222, 1289, 1333, 1457, 1612, 2015, 2021, 2236, 2444, 2578, 2666, 2795, 2914, 3055, 4030, 4042, 5156, 5332, 5590, 5828, 6110, 6445, 6665, 7285, 8060, 8084, 10105, 11180, 12220, 12890, 13330, 14570, 16757, 17329, 18941, 20210, 25780, 26273, 26660, 29140, 33514, 34658, 37882, 39959, 40420, 52546, 55427, 60583, 62651, 67028, 69316, 75764, 79918, 83785, 86645, 94705, 105092, 110854, 121166, 125302, 131365, 159836, 167570, 173290, 189410, 199795, 221708, 242332, 250604, 262730, 277135, 302915, 313255, 335140, 346580, 378820, 399590, 519467, 525460, 554270, 605830, 626510, 720551, 787579, 799180, 814463, 1038934, 1108540, 1211660, 1253020, 1441102, 1575158, 1628926, 1718237, 1878073, 2077868, 2597335, 2605069, 2882204, 3150316, 3257852, 3436474, 3602755, 3756146, 3937895, 4072315, 5194670, 5210138, 6872948, 7205510, 7512292, 7875790, 8144630, 8591185, 9390365, 10389340, 10420276, 13025345, 14411020, 15751580, 16289260, 17182370, 18780730, 22337081, 24414949, 26050690, 33865897, 34364740, 37561460, 44674162, 48829898, 52101380, 67731794, 80757139, 89348324, 97659796, 111685405, 122074745, 135463588, 161514278, 169329485, 223370810, 244149490, 323028556, 338658970, 403785695, 446741620, 488298980, 677317940, 807571390, 1049842807, 1615142780, 2099685614, 4199371228, 5249214035, 10498428070, 20996856140]

約数ペア:

[(1, 20996856140), (2, 10498428070), (4, 5249214035), (5, 4199371228), (10, 2099685614), (13, 1615142780), (20, 1049842807), (26, 807571390), (31, 677317940), (43, 488298980), (47, 446741620), (52, 403785695), (62, 338658970), (65, 323028556), (86, 244149490), (94, 223370810), (124, 169329485), (130, 161514278), (155, 135463588), (172, 122074745), (188, 111685405), (215, 97659796), (235, 89348324), (260, 80757139), (310, 67731794), (403, 52101380), (430, 48829898), (470, 44674162), (559, 37561460), (611, 34364740), (620, 33865897), (806, 26050690), (860, 24414949), (940, 22337081), (1118, 18780730), (1222, 17182370), (1289, 16289260), (1333, 15751580), (1457, 14411020), (1612, 13025345), (2015, 10420276), (2021, 10389340), (2236, 9390365), (2444, 8591185), (2578, 8144630), (2666, 7875790), (2795, 7512292), (2914, 7205510), (3055, 6872948), (4030, 5210138), (4042, 5194670), (5156, 4072315), (5332, 3937895), (5590, 3756146), (5828, 3602755), (6110, 3436474), (6445, 3257852), (6665, 3150316), (7285, 2882204), (8060, 2605069), (8084, 2597335), (10105, 2077868), (11180, 1878073), (12220, 1718237), (12890, 1628926), (13330, 1575158), (14570, 1441102), (16757, 1253020), (17329, 1211660), (18941, 1108540), (20210, 1038934), (25780, 814463), (26273, 799180), (26660, 787579), (29140, 720551), (33514, 626510), (34658, 605830), (37882, 554270), (39959, 525460), (40420, 519467), (52546, 399590), (55427, 378820), (60583, 346580), (62651, 335140), (67028, 313255), (69316, 302915), (75764, 277135), (79918, 262730), (83785, 250604), (86645, 242332), (94705, 221708), (105092, 199795), (110854, 189410), (121166, 173290), (125302, 167570), (131365, 159836)]