261901888

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1307}}^1$

素因数の和:1451

約数の個数: 56

約数和(自身を含む): 542202624

約数和(自身を除く): 280300736

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 101, 124, 202, 248, 404, 496, 808, 992, 1307, 1616, 1984, 2614, 3131, 3232, 5228, 6262, 6464, 10456, 12524, 20912, 25048, 40517, 41824, 50096, 81034, 83648, 100192, 132007, 162068, 200384, 264014, 324136, 528028, 648272, 1056056, 1296544, 2112112, 2593088, 4092217, 4224224, 8184434, 8448448, 16368868, 32737736, 65475472, 130950944, 261901888]

約数ペア:

[(1, 261901888), (2, 130950944), (4, 65475472), (8, 32737736), (16, 16368868), (31, 8448448), (32, 8184434), (62, 4224224), (64, 4092217), (101, 2593088), (124, 2112112), (202, 1296544), (248, 1056056), (404, 648272), (496, 528028), (808, 324136), (992, 264014), (1307, 200384), (1616, 162068), (1984, 132007), (2614, 100192), (3131, 83648), (3232, 81034), (5228, 50096), (6262, 41824), (6464, 40517), (10456, 25048), (12524, 20912)]