156962540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{15791}}^1$

素因数の和:15878

約数の個数: 48

約数和(自身を含む): 382040064

約数和(自身を除く): 225077524

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, 15791, 31582, 63164, 78955, 110537, 157910, 221074, 315820, 442148, 552685, 1105370, 1121161, 2210740, 2242322, 4484644, 5605805, 7848127, 11211610, 15696254, 22423220, 31392508, 39240635, 78481270, 156962540]

約数ペア:

[(1, 156962540), (2, 78481270), (4, 39240635), (5, 31392508), (7, 22423220), (10, 15696254), (14, 11211610), (20, 7848127), (28, 5605805), (35, 4484644), (70, 2242322), (71, 2210740), (140, 1121161), (142, 1105370), (284, 552685), (355, 442148), (497, 315820), (710, 221074), (994, 157910), (1420, 110537), (1988, 78955), (2485, 63164), (4970, 31582), (9940, 15791)]