31920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1$

素因数の和:42

約数の個数: 80

約数和(自身を含む): 119040

約数和(自身を除く): 87120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2660, 3192, 3990, 4560, 5320, 6384, 7980, 10640, 15960, 31920]

約数ペア:

[(1, 31920), (2, 15960), (3, 10640), (4, 7980), (5, 6384), (6, 5320), (7, 4560), (8, 3990), (10, 3192), (12, 2660), (14, 2280), (15, 2128), (16, 1995), (19, 1680), (20, 1596), (21, 1520), (24, 1330), (28, 1140), (30, 1064), (35, 912), (38, 840), (40, 798), (42, 760), (48, 665), (56, 570), (57, 560), (60, 532), (70, 456), (76, 420), (80, 399), (84, 380), (95, 336), (105, 304), (112, 285), (114, 280), (120, 266), (133, 240), (140, 228), (152, 210), (168, 190)]