291471856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:734

約数の個数: 80

約数和(自身を含む): 646208640

約数和(自身を除く): 354736784

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 131, 152, 208, 247, 262, 304, 494, 524, 563, 988, 1048, 1126, 1703, 1976, 2096, 2252, 2489, 3406, 3952, 4504, 4978, 6812, 7319, 9008, 9956, 10697, 13624, 14638, 19912, 21394, 27248, 29276, 32357, 39824, 42788, 58552, 64714, 73753, 85576, 117104, 129428, 139061, 147506, 171152, 258856, 278122, 295012, 517712, 556244, 590024, 958789, 1112488, 1180048, 1401307, 1917578, 2224976, 2802614, 3835156, 5605228, 7670312, 11210456, 15340624, 18216991, 22420912, 36433982, 72867964, 145735928, 291471856]

約数ペア:

[(1, 291471856), (2, 145735928), (4, 72867964), (8, 36433982), (13, 22420912), (16, 18216991), (19, 15340624), (26, 11210456), (38, 7670312), (52, 5605228), (76, 3835156), (104, 2802614), (131, 2224976), (152, 1917578), (208, 1401307), (247, 1180048), (262, 1112488), (304, 958789), (494, 590024), (524, 556244), (563, 517712), (988, 295012), (1048, 278122), (1126, 258856), (1703, 171152), (1976, 147506), (2096, 139061), (2252, 129428), (2489, 117104), (3406, 85576), (3952, 73753), (4504, 64714), (4978, 58552), (6812, 42788), (7319, 39824), (9008, 32357), (9956, 29276), (10697, 27248), (13624, 21394), (14638, 19912)]