1277945984

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:522

約数の個数: 128

約数和(自身を含む): 3034214400

約数和(自身を除く): 1756268416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 139, 217, 224, 248, 278, 331, 434, 448, 496, 556, 662, 868, 896, 973, 992, 1112, 1324, 1736, 1946, 1984, 2224, 2317, 2648, 3472, 3892, 3968, 4309, 4448, 4634, 5296, 6944, 7784, 8618, 8896, 9268, 10261, 10592, 13888, 15568, 17236, 17792, 18536, 20522, 21184, 27776, 30163, 31136, 34472, 37072, 41044, 42368, 46009, 60326, 62272, 68944, 71827, 74144, 82088, 92018, 120652, 124544, 137888, 143654, 148288, 164176, 184036, 241304, 275776, 287308, 296576, 322063, 328352, 368072, 482608, 551552, 574616, 644126, 656704, 736144, 965216, 1149232, 1288252, 1313408, 1426279, 1472288, 1930432, 2298464, 2576504, 2852558, 2944576, 3860864, 4596928, 5153008, 5705116, 5889152, 9193856, 9983953, 10306016, 11410232, 19967906, 20612032, 22820464, 39935812, 41224064, 45640928, 79871624, 91281856, 159743248, 182563712, 319486496, 638972992, 1277945984]

約数ペア:

[(1, 1277945984), (2, 638972992), (4, 319486496), (7, 182563712), (8, 159743248), (14, 91281856), (16, 79871624), (28, 45640928), (31, 41224064), (32, 39935812), (56, 22820464), (62, 20612032), (64, 19967906), (112, 11410232), (124, 10306016), (128, 9983953), (139, 9193856), (217, 5889152), (224, 5705116), (248, 5153008), (278, 4596928), (331, 3860864), (434, 2944576), (448, 2852558), (496, 2576504), (556, 2298464), (662, 1930432), (868, 1472288), (896, 1426279), (973, 1313408), (992, 1288252), (1112, 1149232), (1324, 965216), (1736, 736144), (1946, 656704), (1984, 644126), (2224, 574616), (2317, 551552), (2648, 482608), (3472, 368072), (3892, 328352), (3968, 322063), (4309, 296576), (4448, 287308), (4634, 275776), (5296, 241304), (6944, 184036), (7784, 164176), (8618, 148288), (8896, 143654), (9268, 137888), (10261, 124544), (10592, 120652), (13888, 92018), (15568, 82088), (17236, 74144), (17792, 71827), (18536, 68944), (20522, 62272), (21184, 60326), (27776, 46009), (30163, 42368), (31136, 41044), (34472, 37072)]