16378740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{619}}^1$

素因数の和:651

約数の個数: 144

約数和(自身を含む): 59371200

約数和(自身を除く): 42992460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 619, 630, 735, 756, 882, 945, 980, 1238, 1260, 1323, 1470, 1764, 1857, 1890, 2205, 2476, 2646, 2940, 3095, 3714, 3780, 4333, 4410, 5292, 5571, 6190, 6615, 7428, 8666, 8820, 9285, 11142, 12380, 12999, 13230, 16713, 17332, 18570, 21665, 22284, 25998, 26460, 27855, 30331, 33426, 37140, 38997, 43330, 51996, 55710, 60662, 64995, 66852, 77994, 83565, 86660, 90993, 111420, 116991, 121324, 129990, 151655, 155988, 167130, 181986, 194985, 233982, 259980, 272979, 303310, 334260, 363972, 389970, 454965, 467964, 545958, 584955, 606620, 779940, 818937, 909930, 1091916, 1169910, 1364895, 1637874, 1819860, 2339820, 2729790, 3275748, 4094685, 5459580, 8189370, 16378740]

約数ペア:

[(1, 16378740), (2, 8189370), (3, 5459580), (4, 4094685), (5, 3275748), (6, 2729790), (7, 2339820), (9, 1819860), (10, 1637874), (12, 1364895), (14, 1169910), (15, 1091916), (18, 909930), (20, 818937), (21, 779940), (27, 606620), (28, 584955), (30, 545958), (35, 467964), (36, 454965), (42, 389970), (45, 363972), (49, 334260), (54, 303310), (60, 272979), (63, 259980), (70, 233982), (84, 194985), (90, 181986), (98, 167130), (105, 155988), (108, 151655), (126, 129990), (135, 121324), (140, 116991), (147, 111420), (180, 90993), (189, 86660), (196, 83565), (210, 77994), (245, 66852), (252, 64995), (270, 60662), (294, 55710), (315, 51996), (378, 43330), (420, 38997), (441, 37140), (490, 33426), (540, 30331), (588, 27855), (619, 26460), (630, 25998), (735, 22284), (756, 21665), (882, 18570), (945, 17332), (980, 16713), (1238, 13230), (1260, 12999), (1323, 12380), (1470, 11142), (1764, 9285), (1857, 8820), (1890, 8666), (2205, 7428), (2476, 6615), (2646, 6190), (2940, 5571), (3095, 5292), (3714, 4410), (3780, 4333)]