8016820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{331}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 19410048

約数和(自身を除く): 11393228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 173, 331, 346, 662, 692, 865, 1211, 1324, 1655, 1730, 2317, 2422, 3310, 3460, 4634, 4844, 6055, 6620, 9268, 11585, 12110, 23170, 24220, 46340, 57263, 114526, 229052, 286315, 400841, 572630, 801682, 1145260, 1603364, 2004205, 4008410, 8016820]

約数ペア:

[(1, 8016820), (2, 4008410), (4, 2004205), (5, 1603364), (7, 1145260), (10, 801682), (14, 572630), (20, 400841), (28, 286315), (35, 229052), (70, 114526), (140, 57263), (173, 46340), (331, 24220), (346, 23170), (662, 12110), (692, 11585), (865, 9268), (1211, 6620), (1324, 6055), (1655, 4844), (1730, 4634), (2317, 3460), (2422, 3310)]