257584240

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:914

約数の個数: 80

約数和(自身を含む): 618710400

約数和(自身を除く): 361126160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 79, 80, 106, 158, 212, 265, 316, 395, 424, 530, 632, 769, 790, 848, 1060, 1264, 1538, 1580, 2120, 3076, 3160, 3845, 4187, 4240, 6152, 6320, 7690, 8374, 12304, 15380, 16748, 20935, 30760, 33496, 40757, 41870, 60751, 61520, 66992, 81514, 83740, 121502, 163028, 167480, 203785, 243004, 303755, 326056, 334960, 407570, 486008, 607510, 652112, 815140, 972016, 1215020, 1630280, 2430040, 3219803, 3260560, 4860080, 6439606, 12879212, 16099015, 25758424, 32198030, 51516848, 64396060, 128792120, 257584240]

約数ペア:

[(1, 257584240), (2, 128792120), (4, 64396060), (5, 51516848), (8, 32198030), (10, 25758424), (16, 16099015), (20, 12879212), (40, 6439606), (53, 4860080), (79, 3260560), (80, 3219803), (106, 2430040), (158, 1630280), (212, 1215020), (265, 972016), (316, 815140), (395, 652112), (424, 607510), (530, 486008), (632, 407570), (769, 334960), (790, 326056), (848, 303755), (1060, 243004), (1264, 203785), (1538, 167480), (1580, 163028), (2120, 121502), (3076, 83740), (3160, 81514), (3845, 66992), (4187, 61520), (4240, 60751), (6152, 41870), (6320, 40757), (7690, 33496), (8374, 30760), (12304, 20935), (15380, 16748)]