201621008

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{1303}}^1$

素因数の和:1839

約数の個数: 40

約数和(自身を含む): 412324800

約数和(自身を除く): 210703792

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 509, 1018, 1303, 2036, 2606, 4072, 5212, 8144, 9671, 10424, 19342, 20848, 24757, 38684, 49514, 77368, 99028, 154736, 198056, 396112, 663227, 1326454, 2652908, 5305816, 10611632, 12601313, 25202626, 50405252, 100810504, 201621008]

約数ペア:

[(1, 201621008), (2, 100810504), (4, 50405252), (8, 25202626), (16, 12601313), (19, 10611632), (38, 5305816), (76, 2652908), (152, 1326454), (304, 663227), (509, 396112), (1018, 198056), (1303, 154736), (2036, 99028), (2606, 77368), (4072, 49514), (5212, 38684), (8144, 24757), (9671, 20848), (10424, 19342)]