121975980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{290419}}^1$

素因数の和:290438

約数の個数: 48

約数和(自身を含む): 390324480

約数和(自身を除く): 268348500

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, 290419, 580838, 871257, 1161676, 1452095, 1742514, 2032933, 2904190, 3485028, 4065866, 4356285, 5808380, 6098799, 8131732, 8712570, 10164665, 12197598, 17425140, 20329330, 24395196, 30493995, 40658660, 60987990, 121975980]

約数ペア:

[(1, 121975980), (2, 60987990), (3, 40658660), (4, 30493995), (5, 24395196), (6, 20329330), (7, 17425140), (10, 12197598), (12, 10164665), (14, 8712570), (15, 8131732), (20, 6098799), (21, 5808380), (28, 4356285), (30, 4065866), (35, 3485028), (42, 2904190), (60, 2032933), (70, 1742514), (84, 1452095), (105, 1161676), (140, 871257), (210, 580838), (420, 290419)]