19970880

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:384

約数の個数: 112

約数和(自身を含む): 64520064

約数和(自身を除く): 44549184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 142, 160, 192, 213, 240, 284, 293, 320, 355, 426, 480, 568, 586, 710, 852, 879, 960, 1065, 1136, 1172, 1420, 1465, 1704, 1758, 2130, 2272, 2344, 2840, 2930, 3408, 3516, 4260, 4395, 4544, 4688, 5680, 5860, 6816, 7032, 8520, 8790, 9376, 11360, 11720, 13632, 14064, 17040, 17580, 18752, 20803, 22720, 23440, 28128, 34080, 35160, 41606, 46880, 56256, 62409, 68160, 70320, 83212, 93760, 104015, 124818, 140640, 166424, 208030, 249636, 281280, 312045, 332848, 416060, 499272, 624090, 665696, 832120, 998544, 1248180, 1331392, 1664240, 1997088, 2496360, 3328480, 3994176, 4992720, 6656960, 9985440, 19970880]

約数ペア:

[(1, 19970880), (2, 9985440), (3, 6656960), (4, 4992720), (5, 3994176), (6, 3328480), (8, 2496360), (10, 1997088), (12, 1664240), (15, 1331392), (16, 1248180), (20, 998544), (24, 832120), (30, 665696), (32, 624090), (40, 499272), (48, 416060), (60, 332848), (64, 312045), (71, 281280), (80, 249636), (96, 208030), (120, 166424), (142, 140640), (160, 124818), (192, 104015), (213, 93760), (240, 83212), (284, 70320), (293, 68160), (320, 62409), (355, 56256), (426, 46880), (480, 41606), (568, 35160), (586, 34080), (710, 28128), (852, 23440), (879, 22720), (960, 20803), (1065, 18752), (1136, 17580), (1172, 17040), (1420, 14064), (1465, 13632), (1704, 11720), (1758, 11360), (2130, 9376), (2272, 8790), (2344, 8520), (2840, 7032), (2930, 6816), (3408, 5860), (3516, 5680), (4260, 4688), (4395, 4544)]