18978540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:711

約数の個数: 96

約数和(自身を含む): 61662720

約数和(自身を除く): 42684180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 73, 84, 105, 140, 146, 210, 219, 292, 365, 420, 438, 511, 619, 730, 876, 1022, 1095, 1238, 1460, 1533, 1857, 2044, 2190, 2476, 2555, 3066, 3095, 3714, 4333, 4380, 5110, 6132, 6190, 7428, 7665, 8666, 9285, 10220, 12380, 12999, 15330, 17332, 18570, 21665, 25998, 30660, 37140, 43330, 45187, 51996, 64995, 86660, 90374, 129990, 135561, 180748, 225935, 259980, 271122, 316309, 451870, 542244, 632618, 677805, 903740, 948927, 1265236, 1355610, 1581545, 1897854, 2711220, 3163090, 3795708, 4744635, 6326180, 9489270, 18978540]

約数ペア:

[(1, 18978540), (2, 9489270), (3, 6326180), (4, 4744635), (5, 3795708), (6, 3163090), (7, 2711220), (10, 1897854), (12, 1581545), (14, 1355610), (15, 1265236), (20, 948927), (21, 903740), (28, 677805), (30, 632618), (35, 542244), (42, 451870), (60, 316309), (70, 271122), (73, 259980), (84, 225935), (105, 180748), (140, 135561), (146, 129990), (210, 90374), (219, 86660), (292, 64995), (365, 51996), (420, 45187), (438, 43330), (511, 37140), (619, 30660), (730, 25998), (876, 21665), (1022, 18570), (1095, 17332), (1238, 15330), (1460, 12999), (1533, 12380), (1857, 10220), (2044, 9285), (2190, 8666), (2476, 7665), (2555, 7428), (3066, 6190), (3095, 6132), (3714, 5110), (4333, 4380)]