31028520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 101376000

約数和(自身を除く): 70347480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 285, 310, 372, 380, 439, 456, 465, 570, 589, 620, 744, 760, 878, 930, 1140, 1178, 1240, 1317, 1756, 1767, 1860, 2195, 2280, 2356, 2634, 2945, 3512, 3534, 3720, 4390, 4712, 5268, 5890, 6585, 7068, 8341, 8780, 8835, 10536, 11780, 13170, 13609, 14136, 16682, 17560, 17670, 23560, 25023, 26340, 27218, 33364, 35340, 40827, 41705, 50046, 52680, 54436, 66728, 68045, 70680, 81654, 83410, 100092, 108872, 125115, 136090, 163308, 166820, 200184, 204135, 250230, 258571, 272180, 326616, 333640, 408270, 500460, 517142, 544360, 775713, 816540, 1000920, 1034284, 1292855, 1551426, 1633080, 2068568, 2585710, 3102852, 3878565, 5171420, 6205704, 7757130, 10342840, 15514260, 31028520]

約数ペア:

[(1, 31028520), (2, 15514260), (3, 10342840), (4, 7757130), (5, 6205704), (6, 5171420), (8, 3878565), (10, 3102852), (12, 2585710), (15, 2068568), (19, 1633080), (20, 1551426), (24, 1292855), (30, 1034284), (31, 1000920), (38, 816540), (40, 775713), (57, 544360), (60, 517142), (62, 500460), (76, 408270), (93, 333640), (95, 326616), (114, 272180), (120, 258571), (124, 250230), (152, 204135), (155, 200184), (186, 166820), (190, 163308), (228, 136090), (248, 125115), (285, 108872), (310, 100092), (372, 83410), (380, 81654), (439, 70680), (456, 68045), (465, 66728), (570, 54436), (589, 52680), (620, 50046), (744, 41705), (760, 40827), (878, 35340), (930, 33364), (1140, 27218), (1178, 26340), (1240, 25023), (1317, 23560), (1756, 17670), (1767, 17560), (1860, 16682), (2195, 14136), (2280, 13609), (2356, 13170), (2634, 11780), (2945, 10536), (3512, 8835), (3534, 8780), (3720, 8341), (4390, 7068), (4712, 6585), (5268, 5890)]