399209040

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{439}}^1$

素因数の和:882

約数の個数: 160

約数和(自身を含む): 1381459200

約数和(自身を除く): 982250160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 421, 432, 439, 540, 720, 842, 878, 1080, 1263, 1317, 1684, 1756, 2105, 2160, 2195, 2526, 2634, 3368, 3512, 3789, 3951, 4210, 4390, 5052, 5268, 6315, 6585, 6736, 7024, 7578, 7902, 8420, 8780, 10104, 10536, 11367, 11853, 12630, 13170, 15156, 15804, 16840, 17560, 18945, 19755, 20208, 21072, 22734, 23706, 25260, 26340, 30312, 31608, 33680, 35120, 37890, 39510, 45468, 47412, 50520, 52680, 56835, 59265, 60624, 63216, 75780, 79020, 90936, 94824, 101040, 105360, 113670, 118530, 151560, 158040, 181872, 184819, 189648, 227340, 237060, 303120, 316080, 369638, 454680, 474120, 554457, 739276, 909360, 924095, 948240, 1108914, 1478552, 1663371, 1848190, 2217828, 2772285, 2957104, 3326742, 3696380, 4435656, 4990113, 5544570, 6653484, 7392760, 8316855, 8871312, 9980226, 11089140, 13306968, 14785520, 16633710, 19960452, 22178280, 24950565, 26613936, 33267420, 39920904, 44356560, 49901130, 66534840, 79841808, 99802260, 133069680, 199604520, 399209040]

約数ペア:

[(1, 399209040), (2, 199604520), (3, 133069680), (4, 99802260), (5, 79841808), (6, 66534840), (8, 49901130), (9, 44356560), (10, 39920904), (12, 33267420), (15, 26613936), (16, 24950565), (18, 22178280), (20, 19960452), (24, 16633710), (27, 14785520), (30, 13306968), (36, 11089140), (40, 9980226), (45, 8871312), (48, 8316855), (54, 7392760), (60, 6653484), (72, 5544570), (80, 4990113), (90, 4435656), (108, 3696380), (120, 3326742), (135, 2957104), (144, 2772285), (180, 2217828), (216, 1848190), (240, 1663371), (270, 1478552), (360, 1108914), (421, 948240), (432, 924095), (439, 909360), (540, 739276), (720, 554457), (842, 474120), (878, 454680), (1080, 369638), (1263, 316080), (1317, 303120), (1684, 237060), (1756, 227340), (2105, 189648), (2160, 184819), (2195, 181872), (2526, 158040), (2634, 151560), (3368, 118530), (3512, 113670), (3789, 105360), (3951, 101040), (4210, 94824), (4390, 90936), (5052, 79020), (5268, 75780), (6315, 63216), (6585, 60624), (6736, 59265), (7024, 56835), (7578, 52680), (7902, 50520), (8420, 47412), (8780, 45468), (10104, 39510), (10536, 37890), (11367, 35120), (11853, 33680), (12630, 31608), (13170, 30312), (15156, 26340), (15804, 25260), (16840, 23706), (17560, 22734), (18945, 21072), (19755, 20208)]