385980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{919}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 1236480

約数和(自身を除く): 850500

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, 919, 1838, 2757, 3676, 4595, 5514, 6433, 9190, 11028, 12866, 13785, 18380, 19299, 25732, 27570, 32165, 38598, 55140, 64330, 77196, 96495, 128660, 192990, 385980]

約数ペア:

[(1, 385980), (2, 192990), (3, 128660), (4, 96495), (5, 77196), (6, 64330), (7, 55140), (10, 38598), (12, 32165), (14, 27570), (15, 25732), (20, 19299), (21, 18380), (28, 13785), (30, 12866), (35, 11028), (42, 9190), (60, 6433), (70, 5514), (84, 4595), (105, 3676), (140, 2757), (210, 1838), (420, 919)]