399135360

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15991}}^1$

素因数の和:16026

約数の個数: 128

約数和(自身を含む): 1370194560

約数和(自身を除く): 971059200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 832, 960, 1040, 1248, 1560, 1664, 1920, 2080, 2496, 3120, 4160, 4992, 6240, 8320, 12480, 15991, 24960, 31982, 47973, 63964, 79955, 95946, 127928, 159910, 191892, 207883, 239865, 255856, 319820, 383784, 415766, 479730, 511712, 623649, 639640, 767568, 831532, 959460, 1023424, 1039415, 1247298, 1279280, 1535136, 1663064, 1918920, 2046848, 2078830, 2494596, 2558560, 3070272, 3118245, 3326128, 3837840, 4157660, 4989192, 5117120, 6140544, 6236490, 6652256, 7675680, 8315320, 9978384, 10234240, 12472980, 13304512, 15351360, 16630640, 19956768, 24945960, 26609024, 30702720, 33261280, 39913536, 49891920, 66522560, 79827072, 99783840, 133045120, 199567680, 399135360]

約数ペア:

[(1, 399135360), (2, 199567680), (3, 133045120), (4, 99783840), (5, 79827072), (6, 66522560), (8, 49891920), (10, 39913536), (12, 33261280), (13, 30702720), (15, 26609024), (16, 24945960), (20, 19956768), (24, 16630640), (26, 15351360), (30, 13304512), (32, 12472980), (39, 10234240), (40, 9978384), (48, 8315320), (52, 7675680), (60, 6652256), (64, 6236490), (65, 6140544), (78, 5117120), (80, 4989192), (96, 4157660), (104, 3837840), (120, 3326128), (128, 3118245), (130, 3070272), (156, 2558560), (160, 2494596), (192, 2078830), (195, 2046848), (208, 1918920), (240, 1663064), (260, 1535136), (312, 1279280), (320, 1247298), (384, 1039415), (390, 1023424), (416, 959460), (480, 831532), (520, 767568), (624, 639640), (640, 623649), (780, 511712), (832, 479730), (960, 415766), (1040, 383784), (1248, 319820), (1560, 255856), (1664, 239865), (1920, 207883), (2080, 191892), (2496, 159910), (3120, 127928), (4160, 95946), (4992, 79955), (6240, 63964), (8320, 47973), (12480, 31982), (15991, 24960)]