15991040

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:96

約数の個数: 108

約数和(自身を含む): 42623532

約数和(自身を除く): 26632492

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 961, 992, 1040, 1240, 1280, 1612, 1664, 1922, 1984, 2015, 2080, 2480, 3224, 3328, 3844, 3968, 4030, 4160, 4805, 4960, 6448, 7688, 7936, 8060, 8320, 9610, 9920, 12493, 12896, 15376, 16120, 16640, 19220, 19840, 24986, 25792, 30752, 32240, 38440, 39680, 49972, 51584, 61504, 62465, 64480, 76880, 99944, 103168, 123008, 124930, 128960, 153760, 199888, 246016, 249860, 257920, 307520, 399776, 499720, 515840, 615040, 799552, 999440, 1230080, 1599104, 1998880, 3198208, 3997760, 7995520, 15991040]

約数ペア:

[(1, 15991040), (2, 7995520), (4, 3997760), (5, 3198208), (8, 1998880), (10, 1599104), (13, 1230080), (16, 999440), (20, 799552), (26, 615040), (31, 515840), (32, 499720), (40, 399776), (52, 307520), (62, 257920), (64, 249860), (65, 246016), (80, 199888), (104, 153760), (124, 128960), (128, 124930), (130, 123008), (155, 103168), (160, 99944), (208, 76880), (248, 64480), (256, 62465), (260, 61504), (310, 51584), (320, 49972), (403, 39680), (416, 38440), (496, 32240), (520, 30752), (620, 25792), (640, 24986), (806, 19840), (832, 19220), (961, 16640), (992, 16120), (1040, 15376), (1240, 12896), (1280, 12493), (1612, 9920), (1664, 9610), (1922, 8320), (1984, 8060), (2015, 7936), (2080, 7688), (2480, 6448), (3224, 4960), (3328, 4805), (3844, 4160), (3968, 4030)]