20815002

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 50400000

約数和(自身を除く): 29584998

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 149, 199, 234, 298, 351, 398, 447, 597, 702, 894, 1194, 1341, 1791, 1937, 2587, 2682, 3582, 3874, 4023, 5174, 5373, 5811, 7761, 8046, 10746, 11622, 15522, 17433, 23283, 29651, 34866, 46566, 52299, 59302, 69849, 88953, 104598, 139698, 177906, 266859, 385463, 533718, 770926, 800577, 1156389, 1601154, 2312778, 3469167, 6938334, 10407501, 20815002]

約数ペア:

[(1, 20815002), (2, 10407501), (3, 6938334), (6, 3469167), (9, 2312778), (13, 1601154), (18, 1156389), (26, 800577), (27, 770926), (39, 533718), (54, 385463), (78, 266859), (117, 177906), (149, 139698), (199, 104598), (234, 88953), (298, 69849), (351, 59302), (398, 52299), (447, 46566), (597, 34866), (702, 29651), (894, 23283), (1194, 17433), (1341, 15522), (1791, 11622), (1937, 10746), (2587, 8046), (2682, 7761), (3582, 5811), (3874, 5373), (4023, 5174)]