51720660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^2$

素因数の和:179

約数の個数: 144

約数和(自身を含む): 171796800

約数和(自身を除く): 120076140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 71, 76, 90, 95, 108, 114, 135, 142, 171, 180, 190, 213, 228, 270, 284, 285, 342, 355, 380, 426, 513, 540, 570, 639, 684, 710, 852, 855, 1026, 1065, 1140, 1278, 1349, 1420, 1710, 1917, 2052, 2130, 2556, 2565, 2698, 3195, 3420, 3834, 4047, 4260, 5041, 5130, 5396, 6390, 6745, 7668, 8094, 9585, 10082, 10260, 12141, 12780, 13490, 15123, 16188, 19170, 20164, 20235, 24282, 25205, 26980, 30246, 36423, 38340, 40470, 45369, 48564, 50410, 60492, 60705, 72846, 75615, 80940, 90738, 95779, 100820, 121410, 136107, 145692, 151230, 181476, 182115, 191558, 226845, 242820, 272214, 287337, 302460, 364230, 383116, 453690, 478895, 544428, 574674, 680535, 728460, 862011, 907380, 957790, 1149348, 1361070, 1436685, 1724022, 1915580, 2586033, 2722140, 2873370, 3448044, 4310055, 5172066, 5746740, 8620110, 10344132, 12930165, 17240220, 25860330, 51720660]

約数ペア:

[(1, 51720660), (2, 25860330), (3, 17240220), (4, 12930165), (5, 10344132), (6, 8620110), (9, 5746740), (10, 5172066), (12, 4310055), (15, 3448044), (18, 2873370), (19, 2722140), (20, 2586033), (27, 1915580), (30, 1724022), (36, 1436685), (38, 1361070), (45, 1149348), (54, 957790), (57, 907380), (60, 862011), (71, 728460), (76, 680535), (90, 574674), (95, 544428), (108, 478895), (114, 453690), (135, 383116), (142, 364230), (171, 302460), (180, 287337), (190, 272214), (213, 242820), (228, 226845), (270, 191558), (284, 182115), (285, 181476), (342, 151230), (355, 145692), (380, 136107), (426, 121410), (513, 100820), (540, 95779), (570, 90738), (639, 80940), (684, 75615), (710, 72846), (852, 60705), (855, 60492), (1026, 50410), (1065, 48564), (1140, 45369), (1278, 40470), (1349, 38340), (1420, 36423), (1710, 30246), (1917, 26980), (2052, 25205), (2130, 24282), (2556, 20235), (2565, 20164), (2698, 19170), (3195, 16188), (3420, 15123), (3834, 13490), (4047, 12780), (4260, 12141), (5041, 10260), (5130, 10082), (5396, 9585), (6390, 8094), (6745, 7668)]