12257456720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1\times {\mathrm{4049}}^1$

素因数の和:4620

約数の個数: 80

約数和(自身を含む): 28926720000

約数和(自身を除く): 16669263280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 479, 632, 790, 958, 1264, 1580, 1916, 2395, 3160, 3832, 4049, 4790, 6320, 7664, 8098, 9580, 16196, 19160, 20245, 32392, 37841, 38320, 40490, 64784, 75682, 80980, 151364, 161960, 189205, 302728, 319871, 323920, 378410, 605456, 639742, 756820, 1279484, 1513640, 1599355, 1939471, 2558968, 3027280, 3198710, 3878942, 5117936, 6397420, 7757884, 9697355, 12794840, 15515768, 19394710, 25589680, 31031536, 38789420, 77578840, 153218209, 155157680, 306436418, 612872836, 766091045, 1225745672, 1532182090, 2451491344, 3064364180, 6128728360, 12257456720]

約数ペア:

[(1, 12257456720), (2, 6128728360), (4, 3064364180), (5, 2451491344), (8, 1532182090), (10, 1225745672), (16, 766091045), (20, 612872836), (40, 306436418), (79, 155157680), (80, 153218209), (158, 77578840), (316, 38789420), (395, 31031536), (479, 25589680), (632, 19394710), (790, 15515768), (958, 12794840), (1264, 9697355), (1580, 7757884), (1916, 6397420), (2395, 5117936), (3160, 3878942), (3832, 3198710), (4049, 3027280), (4790, 2558968), (6320, 1939471), (7664, 1599355), (8098, 1513640), (9580, 1279484), (16196, 756820), (19160, 639742), (20245, 605456), (32392, 378410), (37841, 323920), (38320, 319871), (40490, 302728), (64784, 189205), (75682, 161960), (80980, 151364)]