1731720440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1\times {\mathrm{587}}^1$

素因数の和:1292

約数の個数: 64

約数和(自身を含む): 3939788160

約数和(自身を除く): 2208067720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 563, 587, 655, 1048, 1126, 1174, 1310, 2252, 2348, 2620, 2815, 2935, 4504, 4696, 5240, 5630, 5870, 11260, 11740, 22520, 23480, 73753, 76897, 147506, 153794, 295012, 307588, 330481, 368765, 384485, 590024, 615176, 660962, 737530, 768970, 1321924, 1475060, 1537940, 1652405, 2643848, 2950120, 3075880, 3304810, 6609620, 13219240, 43293011, 86586022, 173172044, 216465055, 346344088, 432930110, 865860220, 1731720440]

約数ペア:

[(1, 1731720440), (2, 865860220), (4, 432930110), (5, 346344088), (8, 216465055), (10, 173172044), (20, 86586022), (40, 43293011), (131, 13219240), (262, 6609620), (524, 3304810), (563, 3075880), (587, 2950120), (655, 2643848), (1048, 1652405), (1126, 1537940), (1174, 1475060), (1310, 1321924), (2252, 768970), (2348, 737530), (2620, 660962), (2815, 615176), (2935, 590024), (4504, 384485), (4696, 368765), (5240, 330481), (5630, 307588), (5870, 295012), (11260, 153794), (11740, 147506), (22520, 76897), (23480, 73753)]