395764720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4817}}^1$

素因数の和:4922

約数の個数: 80

約数和(自身を含む): 1003685760

約数和(自身を除く): 607921040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 520, 632, 790, 1027, 1040, 1264, 1580, 2054, 3160, 4108, 4817, 5135, 6320, 8216, 9634, 10270, 16432, 19268, 20540, 24085, 38536, 41080, 48170, 62621, 77072, 82160, 96340, 125242, 192680, 250484, 313105, 380543, 385360, 500968, 626210, 761086, 1001936, 1252420, 1522172, 1902715, 2504840, 3044344, 3805430, 4947059, 5009680, 6088688, 7610860, 9894118, 15221720, 19788236, 24735295, 30443440, 39576472, 49470590, 79152944, 98941180, 197882360, 395764720]

約数ペア:

[(1, 395764720), (2, 197882360), (4, 98941180), (5, 79152944), (8, 49470590), (10, 39576472), (13, 30443440), (16, 24735295), (20, 19788236), (26, 15221720), (40, 9894118), (52, 7610860), (65, 6088688), (79, 5009680), (80, 4947059), (104, 3805430), (130, 3044344), (158, 2504840), (208, 1902715), (260, 1522172), (316, 1252420), (395, 1001936), (520, 761086), (632, 626210), (790, 500968), (1027, 385360), (1040, 380543), (1264, 313105), (1580, 250484), (2054, 192680), (3160, 125242), (4108, 96340), (4817, 82160), (5135, 77072), (6320, 62621), (8216, 48170), (9634, 41080), (10270, 38536), (16432, 24085), (19268, 20540)]