18478208

素因数分解:

$2^7\times 7^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:565

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 24704512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 287, 328, 448, 503, 574, 656, 896, 1006, 1148, 1312, 2012, 2296, 2624, 3521, 4024, 4592, 5248, 7042, 8048, 9184, 14084, 16096, 18368, 20623, 28168, 32192, 36736, 41246, 56336, 64384, 82492, 112672, 144361, 164984, 225344, 288722, 329968, 450688, 577444, 659936, 1154888, 1319872, 2309776, 2639744, 4619552, 9239104, 18478208]

約数ペア:

[(1, 18478208), (2, 9239104), (4, 4619552), (7, 2639744), (8, 2309776), (14, 1319872), (16, 1154888), (28, 659936), (32, 577444), (41, 450688), (56, 329968), (64, 288722), (82, 225344), (112, 164984), (128, 144361), (164, 112672), (224, 82492), (287, 64384), (328, 56336), (448, 41246), (503, 36736), (574, 32192), (656, 28168), (896, 20623), (1006, 18368), (1148, 16096), (1312, 14084), (2012, 9184), (2296, 8048), (2624, 7042), (3521, 5248), (4024, 4592)]