400860120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 1229437440

約数和(自身を除く): 828577320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 167, 241, 249, 332, 334, 415, 482, 498, 501, 664, 668, 723, 830, 835, 964, 996, 1002, 1205, 1245, 1336, 1446, 1660, 1670, 1928, 1992, 2004, 2410, 2490, 2505, 2892, 3320, 3340, 3615, 4008, 4820, 4980, 5010, 5784, 6680, 7230, 9640, 9960, 10020, 13861, 14460, 20003, 20040, 27722, 28920, 40006, 40247, 41583, 55444, 60009, 69305, 80012, 80494, 83166, 100015, 110888, 120018, 120741, 138610, 160024, 160988, 166332, 200030, 201235, 207915, 240036, 241482, 277220, 300045, 321976, 332664, 400060, 402470, 415830, 480072, 482964, 554440, 600090, 603705, 800120, 804940, 831660, 965928, 1200180, 1207410, 1609880, 1663320, 2400360, 2414820, 3340501, 4829640, 6681002, 10021503, 13362004, 16702505, 20043006, 26724008, 33405010, 40086012, 50107515, 66810020, 80172024, 100215030, 133620040, 200430060, 400860120]

約数ペア:

[(1, 400860120), (2, 200430060), (3, 133620040), (4, 100215030), (5, 80172024), (6, 66810020), (8, 50107515), (10, 40086012), (12, 33405010), (15, 26724008), (20, 20043006), (24, 16702505), (30, 13362004), (40, 10021503), (60, 6681002), (83, 4829640), (120, 3340501), (166, 2414820), (167, 2400360), (241, 1663320), (249, 1609880), (332, 1207410), (334, 1200180), (415, 965928), (482, 831660), (498, 804940), (501, 800120), (664, 603705), (668, 600090), (723, 554440), (830, 482964), (835, 480072), (964, 415830), (996, 402470), (1002, 400060), (1205, 332664), (1245, 321976), (1336, 300045), (1446, 277220), (1660, 241482), (1670, 240036), (1928, 207915), (1992, 201235), (2004, 200030), (2410, 166332), (2490, 160988), (2505, 160024), (2892, 138610), (3320, 120741), (3340, 120018), (3615, 110888), (4008, 100015), (4820, 83166), (4980, 80494), (5010, 80012), (5784, 69305), (6680, 60009), (7230, 55444), (9640, 41583), (9960, 40247), (10020, 40006), (13861, 28920), (14460, 27722), (20003, 20040)]