20878920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{983}}^1$

素因数の和:1059

約数の個数: 96

約数和(自身を含む): 69076800

約数和(自身を除く): 48197880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 59, 60, 72, 90, 118, 120, 177, 180, 236, 295, 354, 360, 472, 531, 590, 708, 885, 983, 1062, 1180, 1416, 1770, 1966, 2124, 2360, 2655, 2949, 3540, 3932, 4248, 4915, 5310, 5898, 7080, 7864, 8847, 9830, 10620, 11796, 14745, 17694, 19660, 21240, 23592, 29490, 35388, 39320, 44235, 57997, 58980, 70776, 88470, 115994, 117960, 173991, 176940, 231988, 289985, 347982, 353880, 463976, 521973, 579970, 695964, 869955, 1043946, 1159940, 1391928, 1739910, 2087892, 2319880, 2609865, 3479820, 4175784, 5219730, 6959640, 10439460, 20878920]

約数ペア:

[(1, 20878920), (2, 10439460), (3, 6959640), (4, 5219730), (5, 4175784), (6, 3479820), (8, 2609865), (9, 2319880), (10, 2087892), (12, 1739910), (15, 1391928), (18, 1159940), (20, 1043946), (24, 869955), (30, 695964), (36, 579970), (40, 521973), (45, 463976), (59, 353880), (60, 347982), (72, 289985), (90, 231988), (118, 176940), (120, 173991), (177, 117960), (180, 115994), (236, 88470), (295, 70776), (354, 58980), (360, 57997), (472, 44235), (531, 39320), (590, 35388), (708, 29490), (885, 23592), (983, 21240), (1062, 19660), (1180, 17694), (1416, 14745), (1770, 11796), (1966, 10620), (2124, 9830), (2360, 8847), (2655, 7864), (2949, 7080), (3540, 5898), (3932, 5310), (4248, 4915)]