2779980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{6619}}^1$

素因数の和:6638

約数の個数: 48

約数和(自身を含む): 8897280

約数和(自身を除く): 6117300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 6619, 13238, 19857, 26476, 33095, 39714, 46333, 66190, 79428, 92666, 99285, 132380, 138999, 185332, 198570, 231665, 277998, 397140, 463330, 555996, 694995, 926660, 1389990, 2779980]

約数ペア:

[(1, 2779980), (2, 1389990), (3, 926660), (4, 694995), (5, 555996), (6, 463330), (7, 397140), (10, 277998), (12, 231665), (14, 198570), (15, 185332), (20, 138999), (21, 132380), (28, 99285), (30, 92666), (35, 79428), (42, 66190), (60, 46333), (70, 39714), (84, 33095), (105, 26476), (140, 19857), (210, 13238), (420, 6619)]