1279740016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{509}}^1$

素因数の和:722

約数の個数: 80

約数和(自身を含む): 2653044480

約数和(自身を除く): 1373304464

約数列:

[1, 2, 4, 8, 16, 31, 37, 62, 74, 124, 137, 148, 248, 274, 296, 496, 509, 548, 592, 1018, 1096, 1147, 2036, 2192, 2294, 4072, 4247, 4588, 5069, 8144, 8494, 9176, 10138, 15779, 16988, 18352, 18833, 20276, 31558, 33976, 37666, 40552, 63116, 67952, 69733, 75332, 81104, 126232, 139466, 150664, 157139, 252464, 278932, 301328, 314278, 557864, 583823, 628556, 1115728, 1167646, 1257112, 2161723, 2335292, 2514224, 2580121, 4323446, 4670584, 5160242, 8646892, 9341168, 10320484, 17293784, 20640968, 34587568, 41281936, 79983751, 159967502, 319935004, 639870008, 1279740016]

約数ペア:

[(1, 1279740016), (2, 639870008), (4, 319935004), (8, 159967502), (16, 79983751), (31, 41281936), (37, 34587568), (62, 20640968), (74, 17293784), (124, 10320484), (137, 9341168), (148, 8646892), (248, 5160242), (274, 4670584), (296, 4323446), (496, 2580121), (509, 2514224), (548, 2335292), (592, 2161723), (1018, 1257112), (1096, 1167646), (1147, 1115728), (2036, 628556), (2192, 583823), (2294, 557864), (4072, 314278), (4247, 301328), (4588, 278932), (5069, 252464), (8144, 157139), (8494, 150664), (9176, 139466), (10138, 126232), (15779, 81104), (16988, 75332), (18352, 69733), (18833, 67952), (20276, 63116), (31558, 40552), (33976, 37666)]