381289428

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18947}}^1$

素因数の和:19013

約数の個数: 72

約数和(自身を含む): 1062149088

約数和(自身を除く): 680859660

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1118, 1548, 1677, 2236, 3354, 5031, 6708, 10062, 18947, 20124, 37894, 56841, 75788, 113682, 170523, 227364, 246311, 341046, 492622, 682092, 738933, 814721, 985244, 1477866, 1629442, 2216799, 2444163, 2955732, 3258884, 4433598, 4888326, 7332489, 8867196, 9776652, 10591373, 14664978, 21182746, 29329956, 31774119, 42365492, 63548238, 95322357, 127096476, 190644714, 381289428]

約数ペア:

[(1, 381289428), (2, 190644714), (3, 127096476), (4, 95322357), (6, 63548238), (9, 42365492), (12, 31774119), (13, 29329956), (18, 21182746), (26, 14664978), (36, 10591373), (39, 9776652), (43, 8867196), (52, 7332489), (78, 4888326), (86, 4433598), (117, 3258884), (129, 2955732), (156, 2444163), (172, 2216799), (234, 1629442), (258, 1477866), (387, 985244), (468, 814721), (516, 738933), (559, 682092), (774, 492622), (1118, 341046), (1548, 246311), (1677, 227364), (2236, 170523), (3354, 113682), (5031, 75788), (6708, 56841), (10062, 37894), (18947, 20124)]