261921728

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1361}}^1$

素因数の和:1501

約数の個数: 56

約数和(自身を含む): 542446464

約数和(自身を除く): 280524736

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 97, 124, 194, 248, 388, 496, 776, 992, 1361, 1552, 1984, 2722, 3007, 3104, 5444, 6014, 6208, 10888, 12028, 21776, 24056, 42191, 43552, 48112, 84382, 87104, 96224, 132017, 168764, 192448, 264034, 337528, 528068, 675056, 1056136, 1350112, 2112272, 2700224, 4092527, 4224544, 8185054, 8449088, 16370108, 32740216, 65480432, 130960864, 261921728]

約数ペア:

[(1, 261921728), (2, 130960864), (4, 65480432), (8, 32740216), (16, 16370108), (31, 8449088), (32, 8185054), (62, 4224544), (64, 4092527), (97, 2700224), (124, 2112272), (194, 1350112), (248, 1056136), (388, 675056), (496, 528068), (776, 337528), (992, 264034), (1361, 192448), (1552, 168764), (1984, 132017), (2722, 96224), (3007, 87104), (3104, 84382), (5444, 48112), (6014, 43552), (6208, 42191), (10888, 24056), (12028, 21776)]