28275720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:747

約数の個数: 128

約数和(自身を含む): 95662080

約数和(自身を除く): 67386360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 186, 220, 248, 264, 310, 330, 341, 372, 440, 465, 620, 660, 682, 691, 744, 930, 1023, 1240, 1320, 1364, 1382, 1705, 1860, 2046, 2073, 2728, 2764, 3410, 3455, 3720, 4092, 4146, 5115, 5528, 6820, 6910, 7601, 8184, 8292, 10230, 10365, 13640, 13820, 15202, 16584, 20460, 20730, 21421, 22803, 27640, 30404, 38005, 40920, 41460, 42842, 45606, 60808, 64263, 76010, 82920, 85684, 91212, 107105, 114015, 128526, 152020, 171368, 182424, 214210, 228030, 235631, 257052, 304040, 321315, 428420, 456060, 471262, 514104, 642630, 706893, 856840, 912120, 942524, 1178155, 1285260, 1413786, 1885048, 2356310, 2570520, 2827572, 3534465, 4712620, 5655144, 7068930, 9425240, 14137860, 28275720]

約数ペア:

[(1, 28275720), (2, 14137860), (3, 9425240), (4, 7068930), (5, 5655144), (6, 4712620), (8, 3534465), (10, 2827572), (11, 2570520), (12, 2356310), (15, 1885048), (20, 1413786), (22, 1285260), (24, 1178155), (30, 942524), (31, 912120), (33, 856840), (40, 706893), (44, 642630), (55, 514104), (60, 471262), (62, 456060), (66, 428420), (88, 321315), (93, 304040), (110, 257052), (120, 235631), (124, 228030), (132, 214210), (155, 182424), (165, 171368), (186, 152020), (220, 128526), (248, 114015), (264, 107105), (310, 91212), (330, 85684), (341, 82920), (372, 76010), (440, 64263), (465, 60808), (620, 45606), (660, 42842), (682, 41460), (691, 40920), (744, 38005), (930, 30404), (1023, 27640), (1240, 22803), (1320, 21421), (1364, 20730), (1382, 20460), (1705, 16584), (1860, 15202), (2046, 13820), (2073, 13640), (2728, 10365), (2764, 10230), (3410, 8292), (3455, 8184), (3720, 7601), (4092, 6910), (4146, 6820), (5115, 5528)]