256178944

素因数分解:

$2^8\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2423}}^1$

素因数の和:2505

約数の個数: 72

約数和(自身を含む): 594558720

約数和(自身を除く): 338379776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 59, 64, 112, 118, 128, 224, 236, 256, 413, 448, 472, 826, 896, 944, 1652, 1792, 1888, 2423, 3304, 3776, 4846, 6608, 7552, 9692, 13216, 15104, 16961, 19384, 26432, 33922, 38768, 52864, 67844, 77536, 105728, 135688, 142957, 155072, 271376, 285914, 310144, 542752, 571828, 620288, 1000699, 1085504, 1143656, 2001398, 2171008, 2287312, 4002796, 4342016, 4574624, 8005592, 9149248, 16011184, 18298496, 32022368, 36596992, 64044736, 128089472, 256178944]

約数ペア:

[(1, 256178944), (2, 128089472), (4, 64044736), (7, 36596992), (8, 32022368), (14, 18298496), (16, 16011184), (28, 9149248), (32, 8005592), (56, 4574624), (59, 4342016), (64, 4002796), (112, 2287312), (118, 2171008), (128, 2001398), (224, 1143656), (236, 1085504), (256, 1000699), (413, 620288), (448, 571828), (472, 542752), (826, 310144), (896, 285914), (944, 271376), (1652, 155072), (1792, 142957), (1888, 135688), (2423, 105728), (3304, 77536), (3776, 67844), (4846, 52864), (6608, 38768), (7552, 33922), (9692, 26432), (13216, 19384), (15104, 16961)]