420191940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1000457}}^1$

素因数の和:1000476

約数の個数: 48

約数和(自身を含む): 1344615552

約数和(自身を除く): 924423612

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, 1000457, 2000914, 3001371, 4001828, 5002285, 6002742, 7003199, 10004570, 12005484, 14006398, 15006855, 20009140, 21009597, 28012796, 30013710, 35015995, 42019194, 60027420, 70031990, 84038388, 105047985, 140063980, 210095970, 420191940]

約数ペア:

[(1, 420191940), (2, 210095970), (3, 140063980), (4, 105047985), (5, 84038388), (6, 70031990), (7, 60027420), (10, 42019194), (12, 35015995), (14, 30013710), (15, 28012796), (20, 21009597), (21, 20009140), (28, 15006855), (30, 14006398), (35, 12005484), (42, 10004570), (60, 7003199), (70, 6002742), (84, 5002285), (105, 4001828), (140, 3001371), (210, 2000914), (420, 1000457)]