1819860

素因数分解:

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

素因数の和:645

約数の個数: 72

約数和(自身を含む): 5937120

約数和(自身を除く): 4117260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 619, 735, 980, 1238, 1470, 1857, 2476, 2940, 3095, 3714, 4333, 6190, 7428, 8666, 9285, 12380, 12999, 17332, 18570, 21665, 25998, 30331, 37140, 43330, 51996, 60662, 64995, 86660, 90993, 121324, 129990, 151655, 181986, 259980, 303310, 363972, 454965, 606620, 909930, 1819860]

約数ペア:

[(1, 1819860), (2, 909930), (3, 606620), (4, 454965), (5, 363972), (6, 303310), (7, 259980), (10, 181986), (12, 151655), (14, 129990), (15, 121324), (20, 90993), (21, 86660), (28, 64995), (30, 60662), (35, 51996), (42, 43330), (49, 37140), (60, 30331), (70, 25998), (84, 21665), (98, 18570), (105, 17332), (140, 12999), (147, 12380), (196, 9285), (210, 8666), (245, 7428), (294, 6190), (420, 4333), (490, 3714), (588, 3095), (619, 2940), (735, 2476), (980, 1857), (1238, 1470)]