819420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1951}}^1$

素因数の和:1970

約数の個数: 48

約数和(自身を含む): 2623488

約数和(自身を除く): 1804068

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, 1951, 3902, 5853, 7804, 9755, 11706, 13657, 19510, 23412, 27314, 29265, 39020, 40971, 54628, 58530, 68285, 81942, 117060, 136570, 163884, 204855, 273140, 409710, 819420]

約数ペア:

[(1, 819420), (2, 409710), (3, 273140), (4, 204855), (5, 163884), (6, 136570), (7, 117060), (10, 81942), (12, 68285), (14, 58530), (15, 54628), (20, 40971), (21, 39020), (28, 29265), (30, 27314), (35, 23412), (42, 19510), (60, 13657), (70, 11706), (84, 9755), (105, 7804), (140, 5853), (210, 3902), (420, 1951)]