64365320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 149551920

約数和(自身を除く): 85186600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 97, 106, 194, 212, 265, 313, 388, 424, 485, 530, 626, 776, 970, 1060, 1252, 1565, 1940, 2120, 2504, 3130, 3880, 5141, 6260, 10282, 12520, 16589, 20564, 25705, 30361, 33178, 41128, 51410, 60722, 66356, 82945, 102820, 121444, 132712, 151805, 165890, 205640, 242888, 303610, 331780, 607220, 663560, 1214440, 1609133, 3218266, 6436532, 8045665, 12873064, 16091330, 32182660, 64365320]

約数ペア:

[(1, 64365320), (2, 32182660), (4, 16091330), (5, 12873064), (8, 8045665), (10, 6436532), (20, 3218266), (40, 1609133), (53, 1214440), (97, 663560), (106, 607220), (194, 331780), (212, 303610), (265, 242888), (313, 205640), (388, 165890), (424, 151805), (485, 132712), (530, 121444), (626, 102820), (776, 82945), (970, 66356), (1060, 60722), (1252, 51410), (1565, 41128), (1940, 33178), (2120, 30361), (2504, 25705), (3130, 20564), (3880, 16589), (5141, 12520), (6260, 10282)]