20149560

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{691}}^1$

素因数の和:720

約数の個数: 112

約数和(自身を含む): 68072040

約数和(自身を除く): 47922480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 691, 729, 810, 972, 1080, 1215, 1382, 1458, 1620, 1944, 2073, 2430, 2764, 2916, 3240, 3455, 3645, 4146, 4860, 5528, 5832, 6219, 6910, 7290, 8292, 9720, 10365, 12438, 13820, 14580, 16584, 18657, 20730, 24876, 27640, 29160, 31095, 37314, 41460, 49752, 55971, 62190, 74628, 82920, 93285, 111942, 124380, 149256, 167913, 186570, 223884, 248760, 279855, 335826, 373140, 447768, 503739, 559710, 671652, 746280, 839565, 1007478, 1119420, 1343304, 1679130, 2014956, 2238840, 2518695, 3358260, 4029912, 5037390, 6716520, 10074780, 20149560]

約数ペア:

[(1, 20149560), (2, 10074780), (3, 6716520), (4, 5037390), (5, 4029912), (6, 3358260), (8, 2518695), (9, 2238840), (10, 2014956), (12, 1679130), (15, 1343304), (18, 1119420), (20, 1007478), (24, 839565), (27, 746280), (30, 671652), (36, 559710), (40, 503739), (45, 447768), (54, 373140), (60, 335826), (72, 279855), (81, 248760), (90, 223884), (108, 186570), (120, 167913), (135, 149256), (162, 124380), (180, 111942), (216, 93285), (243, 82920), (270, 74628), (324, 62190), (360, 55971), (405, 49752), (486, 41460), (540, 37314), (648, 31095), (691, 29160), (729, 27640), (810, 24876), (972, 20730), (1080, 18657), (1215, 16584), (1382, 14580), (1458, 13820), (1620, 12438), (1944, 10365), (2073, 9720), (2430, 8292), (2764, 7290), (2916, 6910), (3240, 6219), (3455, 5832), (3645, 5528), (4146, 4860)]