256358480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6271}}^1$

素因数の和:6364

約数の個数: 80

約数和(自身を含む): 690622464

約数和(自身を除く): 434263984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 6271, 8176, 10220, 12542, 20440, 25084, 31355, 40880, 43897, 50168, 62710, 87794, 100336, 125420, 175588, 219485, 250840, 351176, 438970, 457783, 501680, 702352, 877940, 915566, 1755880, 1831132, 2288915, 3204481, 3511760, 3662264, 4577830, 6408962, 7324528, 9155660, 12817924, 16022405, 18311320, 25635848, 32044810, 36622640, 51271696, 64089620, 128179240, 256358480]

約数ペア:

[(1, 256358480), (2, 128179240), (4, 64089620), (5, 51271696), (7, 36622640), (8, 32044810), (10, 25635848), (14, 18311320), (16, 16022405), (20, 12817924), (28, 9155660), (35, 7324528), (40, 6408962), (56, 4577830), (70, 3662264), (73, 3511760), (80, 3204481), (112, 2288915), (140, 1831132), (146, 1755880), (280, 915566), (292, 877940), (365, 702352), (511, 501680), (560, 457783), (584, 438970), (730, 351176), (1022, 250840), (1168, 219485), (1460, 175588), (2044, 125420), (2555, 100336), (2920, 87794), (4088, 62710), (5110, 50168), (5840, 43897), (6271, 40880), (8176, 31355), (10220, 25084), (12542, 20440)]