20629136

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 47616000

約数和(自身を除く): 26986864

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 31, 38, 44, 62, 76, 88, 124, 152, 176, 199, 209, 248, 304, 341, 398, 418, 496, 589, 682, 796, 836, 1178, 1364, 1592, 1672, 2189, 2356, 2728, 3184, 3344, 3781, 4378, 4712, 5456, 6169, 6479, 7562, 8756, 9424, 12338, 12958, 15124, 17512, 24676, 25916, 30248, 35024, 41591, 49352, 51832, 60496, 67859, 83182, 98704, 103664, 117211, 135718, 166364, 234422, 271436, 332728, 468844, 542872, 665456, 937688, 1085744, 1289321, 1875376, 2578642, 5157284, 10314568, 20629136]

約数ペア:

[(1, 20629136), (2, 10314568), (4, 5157284), (8, 2578642), (11, 1875376), (16, 1289321), (19, 1085744), (22, 937688), (31, 665456), (38, 542872), (44, 468844), (62, 332728), (76, 271436), (88, 234422), (124, 166364), (152, 135718), (176, 117211), (199, 103664), (209, 98704), (248, 83182), (304, 67859), (341, 60496), (398, 51832), (418, 49352), (496, 41591), (589, 35024), (682, 30248), (796, 25916), (836, 24676), (1178, 17512), (1364, 15124), (1592, 12958), (1672, 12338), (2189, 9424), (2356, 8756), (2728, 7562), (3184, 6479), (3344, 6169), (3781, 5456), (4378, 4712)]