287534380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{28927}}^1$

素因数の和:29014

約数の個数: 48

約数和(自身を含む): 699826176

約数和(自身を除く): 412291796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 28927, 57854, 115708, 144635, 202489, 289270, 404978, 578540, 809956, 1012445, 2024890, 2053817, 4049780, 4107634, 8215268, 10269085, 14376719, 20538170, 28753438, 41076340, 57506876, 71883595, 143767190, 287534380]

約数ペア:

[(1, 287534380), (2, 143767190), (4, 71883595), (5, 57506876), (7, 41076340), (10, 28753438), (14, 20538170), (20, 14376719), (28, 10269085), (35, 8215268), (70, 4107634), (71, 4049780), (140, 2053817), (142, 2024890), (284, 1012445), (355, 809956), (497, 578540), (710, 404978), (994, 289270), (1420, 202489), (1988, 144635), (2485, 115708), (4970, 57854), (9940, 28927)]