20854865668

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{6029}}^1$

素因数の和:6126

約数の個数: 144

約数和(自身を含む): 48941988480

約数和(自身を除く): 28087122812

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 43, 52, 68, 86, 91, 119, 169, 172, 182, 221, 238, 301, 338, 364, 442, 476, 559, 602, 676, 731, 884, 1118, 1183, 1204, 1462, 1547, 2236, 2366, 2873, 2924, 3094, 3913, 4732, 5117, 5746, 6029, 6188, 7267, 7826, 9503, 10234, 11492, 12058, 14534, 15652, 19006, 20111, 20468, 24116, 29068, 38012, 40222, 42203, 50869, 66521, 78377, 80444, 84406, 101738, 102493, 123539, 133042, 156754, 168812, 203476, 204986, 247078, 259247, 266084, 313508, 409972, 494156, 518494, 548639, 717451, 864773, 1018901, 1036988, 1097278, 1332409, 1434902, 1729546, 1814729, 2037802, 2194556, 2664818, 2869804, 3370211, 3459092, 3629458, 4075604, 4407199, 5329636, 6740422, 7132307, 7258916, 8814398, 9326863, 13480844, 14264614, 17321317, 17628796, 18653726, 23591477, 28529228, 30850393, 34642634, 37307452, 43812743, 47182954, 57293587, 61700786, 69285268, 87625486, 94365908, 114587174, 121249219, 123401572, 175250972, 229174348, 242498438, 306689201, 401055109, 484996876, 613378402, 744816631, 802110218, 1226756804, 1489633262, 1604220436, 2979266524, 5213716417, 10427432834, 20854865668]

約数ペア:

[(1, 20854865668), (2, 10427432834), (4, 5213716417), (7, 2979266524), (13, 1604220436), (14, 1489633262), (17, 1226756804), (26, 802110218), (28, 744816631), (34, 613378402), (43, 484996876), (52, 401055109), (68, 306689201), (86, 242498438), (91, 229174348), (119, 175250972), (169, 123401572), (172, 121249219), (182, 114587174), (221, 94365908), (238, 87625486), (301, 69285268), (338, 61700786), (364, 57293587), (442, 47182954), (476, 43812743), (559, 37307452), (602, 34642634), (676, 30850393), (731, 28529228), (884, 23591477), (1118, 18653726), (1183, 17628796), (1204, 17321317), (1462, 14264614), (1547, 13480844), (2236, 9326863), (2366, 8814398), (2873, 7258916), (2924, 7132307), (3094, 6740422), (3913, 5329636), (4732, 4407199), (5117, 4075604), (5746, 3629458), (6029, 3459092), (6188, 3370211), (7267, 2869804), (7826, 2664818), (9503, 2194556), (10234, 2037802), (11492, 1814729), (12058, 1729546), (14534, 1434902), (15652, 1332409), (19006, 1097278), (20111, 1036988), (20468, 1018901), (24116, 864773), (29068, 717451), (38012, 548639), (40222, 518494), (42203, 494156), (50869, 409972), (66521, 313508), (78377, 266084), (80444, 259247), (84406, 247078), (101738, 204986), (102493, 203476), (123539, 168812), (133042, 156754)]