18717660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:468

約数の個数: 144

約数和(自身を含む): 64515360

約数和(自身を除く): 45797700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 421, 468, 494, 570, 585, 684, 741, 780, 842, 855, 988, 1140, 1170, 1235, 1263, 1482, 1684, 1710, 2105, 2223, 2340, 2470, 2526, 2964, 3420, 3705, 3789, 4210, 4446, 4940, 5052, 5473, 6315, 7410, 7578, 7999, 8420, 8892, 10946, 11115, 12630, 14820, 15156, 15998, 16419, 18945, 21892, 22230, 23997, 25260, 27365, 31996, 32838, 37890, 39995, 44460, 47994, 49257, 54730, 65676, 71991, 75780, 79990, 82095, 95988, 98514, 103987, 109460, 119985, 143982, 159980, 164190, 197028, 207974, 239970, 246285, 287964, 311961, 328380, 359955, 415948, 479940, 492570, 519935, 623922, 719910, 935883, 985140, 1039870, 1247844, 1439820, 1559805, 1871766, 2079740, 3119610, 3743532, 4679415, 6239220, 9358830, 18717660]

約数ペア:

[(1, 18717660), (2, 9358830), (3, 6239220), (4, 4679415), (5, 3743532), (6, 3119610), (9, 2079740), (10, 1871766), (12, 1559805), (13, 1439820), (15, 1247844), (18, 1039870), (19, 985140), (20, 935883), (26, 719910), (30, 623922), (36, 519935), (38, 492570), (39, 479940), (45, 415948), (52, 359955), (57, 328380), (60, 311961), (65, 287964), (76, 246285), (78, 239970), (90, 207974), (95, 197028), (114, 164190), (117, 159980), (130, 143982), (156, 119985), (171, 109460), (180, 103987), (190, 98514), (195, 95988), (228, 82095), (234, 79990), (247, 75780), (260, 71991), (285, 65676), (342, 54730), (380, 49257), (390, 47994), (421, 44460), (468, 39995), (494, 37890), (570, 32838), (585, 31996), (684, 27365), (741, 25260), (780, 23997), (842, 22230), (855, 21892), (988, 18945), (1140, 16419), (1170, 15998), (1235, 15156), (1263, 14820), (1482, 12630), (1684, 11115), (1710, 10946), (2105, 8892), (2223, 8420), (2340, 7999), (2470, 7578), (2526, 7410), (2964, 6315), (3420, 5473), (3705, 5052), (3789, 4940), (4210, 4446)]