195394920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{509}}^1$

素因数の和:987

約数の個数: 128

約数和(自身を含む): 672710400

約数和(自身を除く): 477315480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 457, 509, 840, 914, 1018, 1371, 1527, 1828, 2036, 2285, 2545, 2742, 3054, 3199, 3563, 3656, 4072, 4570, 5090, 5484, 6108, 6398, 6855, 7126, 7635, 9140, 9597, 10180, 10689, 10968, 12216, 12796, 13710, 14252, 15270, 15995, 17815, 18280, 19194, 20360, 21378, 25592, 27420, 28504, 30540, 31990, 35630, 38388, 42756, 47985, 53445, 54840, 61080, 63980, 71260, 76776, 85512, 95970, 106890, 127960, 142520, 191940, 213780, 232613, 383880, 427560, 465226, 697839, 930452, 1163065, 1395678, 1628291, 1860904, 2326130, 2791356, 3256582, 3489195, 4652260, 4884873, 5582712, 6513164, 6978390, 8141455, 9304520, 9769746, 13026328, 13956780, 16282910, 19539492, 24424365, 27913560, 32565820, 39078984, 48848730, 65131640, 97697460, 195394920]

約数ペア:

[(1, 195394920), (2, 97697460), (3, 65131640), (4, 48848730), (5, 39078984), (6, 32565820), (7, 27913560), (8, 24424365), (10, 19539492), (12, 16282910), (14, 13956780), (15, 13026328), (20, 9769746), (21, 9304520), (24, 8141455), (28, 6978390), (30, 6513164), (35, 5582712), (40, 4884873), (42, 4652260), (56, 3489195), (60, 3256582), (70, 2791356), (84, 2326130), (105, 1860904), (120, 1628291), (140, 1395678), (168, 1163065), (210, 930452), (280, 697839), (420, 465226), (457, 427560), (509, 383880), (840, 232613), (914, 213780), (1018, 191940), (1371, 142520), (1527, 127960), (1828, 106890), (2036, 95970), (2285, 85512), (2545, 76776), (2742, 71260), (3054, 63980), (3199, 61080), (3563, 54840), (3656, 53445), (4072, 47985), (4570, 42756), (5090, 38388), (5484, 35630), (6108, 31990), (6398, 30540), (6855, 28504), (7126, 27420), (7635, 25592), (9140, 21378), (9597, 20360), (10180, 19194), (10689, 18280), (10968, 17815), (12216, 15995), (12796, 15270), (13710, 14252)]